Question

Can you show me a step by step way to add this fraction? 5/6+3/5. I need to know how to do this problem by using LCM or GCF. Can you do this and show me all the steps?

Answer 1

OK so for starter we need to find a common denomanator
So our denomanators are 6 and 5 in this case

Answer 2

So we must find LCM

Answer 3

So lets list the multiples of 5 and 6
5=5,10,15,20,25,30,35
6=6,12,18,24,30
So as we see our LCM is 30

Answer 4

Did you follow so far?

Answer 5

U didnt respond. U have to type yes in the text and the press post its a blue button on the bottom right hand side of the textbox

Answer 6

yes I finally see your message.. thanks... this is where I get confused, once I get to this part. Are you still here

Answer 7

Yaaaaaa

Answer 8

Ok so now we know that our commone denomanator will be 30 correct

Answer 9

The last thing I seen was the LCM message

Answer 10

yes.. because they both has 30 as a LCM

Answer 11

okkkk

Answer 12

Great!

Answer 13

\( \huge \frac{5} {6} * \frac{5} {5} + \frac {3} {5} *\frac{6} {6} \)

\(\huge \frac{25} {30} + \frac{18} {30} =?\)

Answer 14

Ok, I'm following you, so fa

Answer 15

far

Answer 16

ok so basically in in order to get the denomanater to 30 of the first term I had to multiply it by 5 but whatever i do to the bottom I have to do to the top
\(\large \frac{5} {6} * \frac{5} {5} = \frac{25} {30} \)
and the second term I had to multiply it by 6 in order to get the denomanator to 30
\( \large \frac{3} {5} * \frac{6} {6} = \frac {18} {30} \)
and now all you gotta do is add the 2 fractions
So when adding fractions, we keep the denomanator and and add the numerator
\( \huge \frac{25} {30}+\frac {18} {30}= \frac {43} {30} \)

Answer 17

So is this the way I always do problems like this? What does that 64 in yellow by your name mean?

Answer 18

i am at level 64

Answer 19

ok! now I have anoother question... do I need to post my next qquestion on the board, or can I just ask you?
I really appreciate you helping me. This has been so hard for me. I know how to get the answere, but don't know all or how show the steps

Answer 20

u can ask it here but usually u wld close the question and then post another question

Answer 21

How to find the LCM of 32 and 28

Answer 22

hmmmm shldnt it be GCF

Answer 23

Is that what you want me to do?

Answer 24

it says Find the LCM of 32 and 28?

Answer 25

okkkkk we will do that then

Answer 26

ok so basically we gotta list the multiples of 32 and 24

Answer 27

I also have one for GCF of 72 and 78

Answer 28

So the multiples of 28 are 1*28, 2*28, 3*28, 4*28, 5*28
Multiples of 28= 28, 56,84,112,140,168,196,224
Ok now u find the mutiples of 32

Answer 29

you u want me to do this

Answer 30

1x32,2x32,3x32,4x32,5x32
32=32,64,66,128,160

Answer 31

ok

Answer 32

ok now continue a lil more
32*6, 32*7

Answer 33

6x32,7x32

Answer 34

160,192

Answer 35

7*32=224

Answer 36

sorry, I forgot to to send that last one

Answer 37

28= 28, 56,84,112,140,168,196,224
32=32,64,66,128,160,192,224
So what is the LCM

Answer 38

What is the lowest number that is the same?

Answer 39

LCM measns least common factor, Right? So its 224

Answer 40

LCM=Lowest Common Multiple and it is 224 correct

Answer 41

Great... so is this the same way I do the GCF for 72 and 78

Answer 42

Nope

Answer 43

GCF= Greatest Common Factors

Answer 44

Factors are 2 numbers that when multiplied will equal that number ok ill show u with 72

Answer 45

wowwwwwwww! Really!! So do you have time to explain explain that one to me?

Answer 46

OK! Thanks

Answer 47

72=1,72,2,36,3,24,4,18,6,12, 8,9
71=1,2,3,4,68,9,12,18,24,36,72

Answer 48

72=1,72,2,36,3,24,4,18,6,12, 8,9
72=1,2,3,4,68,9,12,18,24,36,72

Answer 49

hold up I'm confused

Answer 50

ok well let me explain the concept with a smaller number so its easier to understand
Lets take the number 6
1*6=6
2*3=6
So the factors of 6 are=1,2,3,6

Answer 51

ok, let me expalin it back to you

Answer 52

72=1x72=72,2x32=72,3x24=72,....etc

Answer 53

YAAAAAAAAAAAAAAAAAAAA

Answer 54

wowwwwwwww

Answer 55

I was a little confused

Answer 56

ok so try 78 find the factors of 78

Answer 57

0k! I will try

Answer 58

well
1*78=78

Answer 59

1,78,2,39,3,26

Answer 60

when I got to 4 I had a remainder, so what do you do twen that happens... I stop

Answer 61

then its not a facto go onto the next one

Answer 62

ummmmm... 6,13,

Answer 63

yes

Answer 64

and that is it correct

Answer 65

78=1,2,3,6,1326,39.78

Answer 66

how did you get 39

Answer 67

72=1,2,3,4,68,9,12,18,24,36,72
78=1,2,3,6,13,26,39.78

Answer 68

I just copied what u gave me above

Answer 69

and u wrote 39


1,78,2,39,3,26

Answer 70

ok.. so did I do it right

Answer 71

yessssssssssssss

Answer 72

72=1,2,3,4,68,9,12,18,24,36,72
78=1,2,3,6,13,26,39.78
Now we gotta find the greatest common factor
What is the greatest number that is in both sets basically

Answer 73

This is a little different from the other.. lol

Answer 74

it is lol. Its easy to confuse both of them

Answer 75

36 and 39

Answer 76

As long as I have your notes, I will be able to do this

Answer 77

nope that isnt the same number

Answer 78

we need the exact number

Answer 79

72=1,2,3,4,6,8,9,12,18,24,36,72
78=1,2,3,6,13,26,39.78

Answer 80

oh .. sorry
6

Answer 81

yaaaaaaaaaaaaaaaaaaaaaaaaaa

Answer 82

There we goooooo

Answer 83

Had to think about what you had really asked me

Answer 84

wowwwww

Answer 85

Can I save this information you have taught me?

Answer 86

hmmmmmm well if u look ontop on ur righthand corner There should be ur username, Dawson4070 in Blue. Click on it. And then a new page will open and on ur right hand side u will see something that says questions asked click on that and u will see ur question there. Try it

Answer 87

yes I I see it.. but don't see anything that says for me to save it

Answer 88

No its automatically saved and if u want to find ur questions that u asked u go there

Answer 89

cuz now once ur finished u press close question and the way to get back to it is to go there

Answer 90

Oh really

Answer 91

will I always be avble to get you, when I come back on?

Answer 92

Ummm Not always but U can always send me a msg to see if I am on or tag me like Using the @ symbol
@Dawson4070

Answer 93

But there are other ppl on here that are really smart so dont worry abt it

Answer 94

There is always someone on here to help u

Answer 95

ok.. .. let me see if I can do that

Answer 96

Will your messages and name be name still be in my in box once I close out out session?

Answer 97

ummm it will be but in order to find them u will have to click on the letter in the upper hand left hand side and at the bottim it says view all messages and everything will come up

Answer 98

or u can fan me and like u will be able to see if I am on or off