Question

Add.

A.


B.


C.


D.

Answer 1

add what?

Answer 2

http://prntscr.com/9xey6z

Answer 3

@Awolflover1

Answer 4

you need common denominators

so what is a common number between 2,4, and 2

Answer 5

2 maybe

Answer 6

can 4 go into 2?

Answer 7

no

Answer 8

so 2 can't be the lcm

Answer 9

ok how do you find LCM

Answer 10

i dont remember

Answer 11

list the factors of 2 and 4

Answer 12

ok

Answer 13

Look at 2, 4, 2. Can you divide 2 into 4? Can you divide the other 2 into 4?
Does this quiz tell you anything?

Answer 14

well 1 can go in to 2 two time and 1 can go in to 4 four times

Answer 15

right

Answer 16

What's the LCD here? 3/5 + 7/10 Note that the denom. 5 divides into the denom. 10 with no remainder. 10 div. by 5 is 2. Multiply numerator and denom. of the fraction 3/5 by 2: 6/10

Then you have 6/10+7/10. Same denoms. Therefore, you can add these fracts. together. Please do so . Then go back to the original question and see if you can use what you've learned here.

Answer 17

ok 6/10 + 710 = 13/10

Answer 18

right

Answer 19

?

Answer 20

@mathmale

Answer 21

@Mehek14

Answer 22

anyone

Answer 23

@elite

Answer 24

what number do 2 and 4 go into?

Answer 25

hold on

Answer 26

8,12,14,16 right?????

Answer 27

how about 4?

Answer 28

yeah

Answer 29

for four 8,12,16,20,24

Answer 30

right???

Answer 31

yes

Answer 32

electric_blue

Answer 33

@Electric_Blue

Answer 34

@Mehek14

Answer 35

so if 4 goes in both, we need to change the fraction 1/2

multiply by 2 because 2*2 = 4

2/4 + 3/4 + 2/4 = ?

Answer 36

7/4

Answer 37

?

Answer 38

now simply that

first find out how many times 4 goes into 7

Answer 39

mehek got this -_-

Answer 40

1 time

Answer 41

4 can go into 7 1 time

Answer 42

so what is the remainder if it goes 1 time?

Answer 43

3

Answer 44

3

Answer 45

sorry for the delay; you have solved my sample problem correctly.

Since both 2's divide into 4 with no remainder, 2 is a factor of 4, and you should multiply the numerators and denominators of the 1st and 3rd fractions by 2.

By doing this, you will have converted all three fractions to a common denominator.

Answer 46

wait what

Answer 47

sorry im dumb

Answer 48

No you're not.

You're adding 1/2 and 3/4 and 1/2.

1/2 could be converted to denominator 4 if you'd please multiply its numerator (1) and its denominator (2) by 2 each.

1/2 becomes 2/4. Same for the other 1/2.

So now you have 2/4 + 3/4 + 2/4. Add together the numerators and then divide the sum by 4.

Answer 49

ok 2+3+2/4=1.75

Answer 50

If you want to do that, it's essential that y ou enclose the 2+3+2 inside parentheses.
What you've written actually means 2 + 3 + 2/4.

What you want is (2+3+2) / 4. Yes, that's correct otherwise.

Answer 51

ok?

Answer 52

Note that you begin with 1/2 + 3/4 + 1/2,

and that 1/2 + 1/2 = 1

So the whole problem boils down to 1 3/4, or 7/4, or 1.75.

Answer 53

1.75

Answer 54

......

Answer 55

But it's still very important that you understand the concept of "lowest common denominator" and know how to find the LCD>

Answer 56

ok

Answer 57

I wasn't asking you to choose one of those. 1 3/4, 1.75 and 7/4 are identical in value.

Answer 58

oh

Answer 59

Problem solved. Any questions?

Answer 60

ok so its C

Answer 61

?????......

Answer 62

You didn't type in the answers; I can't see them. But you are correct in stating that the answer is 1.75. 1 3/4 or 7/4 would also be correct. So I'll trust you to choose the correct answer.

Answer 63

i will give you the link 1 sec

Answer 64

http://prntscr.com/9xf9ax

Answer 65

very good.

Answer 66

i got it correct

Answer 67

!!!!!!

Answer 68

Yes, you did.

Answer 69

ty!