Question

7/8+3/4 X 1/4 how do I do this?

Answer 1

OK Would that be \[\frac{ 7 }{ 8}+\frac{ 3 }{4 } *\frac{ 1 }{ 4 }\]

Answer 2

yesss

Answer 3

OK First change 3/4 and 1/4 to have a base of 8

Answer 4

Note since 4 is half of 8 the eaisest is to double them

Answer 5

I.E 1/4 becomes 2/8

Answer 6

Do the same for 3/4

Answer 7

okay

Answer 8

so is it 6/8?

Answer 9

OK! So that gives you
\[\frac{ 7 }{ 8 }+\frac{ 6 }{8 }*\frac{ 2 }{8 }\]

Answer 10

15/8?

Answer 11

oh wait nevermind lol

Answer 12

you do not have to change the 1/4

Answer 13

I'm a little rusty on fractions sorry about that. Haven't done them manually for a few years

Answer 14

so wait. now im confused

Answer 15

OK 6/8*2/8?

Answer 16

Times the top and bottom across
6*2=12
8*8=?

Answer 17

64

Answer 18

do what jo said....add 7/8 + 6/8 and then multiply that answer by 1/4

Answer 19

OK so now you have \[\frac{ 12 }{64 }\rightarrow \frac{ 3 }{ ? }\]

Answer 20

sorry 3/16

Answer 21

or you can multiply it by 2/8....it doesn't matter, they are equivalent

Answer 22

okay, so the answer would be 3/16?

Answer 23

no

Answer 24

3/16 + 6/8

Answer 25

im so confused. honestly. I don't get this. do you have to have common denominators to add that?

Answer 26

7/8 + 6/8 * 1/4
13/8 * 1/4 = 13/32

Answer 27

You need an LCD for the addition step. NOT for the multiplication step.

Answer 28

Yes so change 6/8 to 12/16

Answer 29

so 15/16

Answer 30

Right!

Answer 31

I think

Answer 32

I think i'm getting my algebra mixed up with your fractions

Answer 33

no.......7/8 + 6/8 * 1/4
13/8 * 1/4 = 13/32

Answer 34

so its 13/32?

Answer 35

well i'll just come straight out and tell you my calculator (given your origanal equation)
is
17/16

Answer 36

\[\frac{ 7 }{ 8 }+\frac{ 3 }{ 4 }\times\frac{ 1 }{ 4 }=\frac{ 7 }{ 8 }+\frac{ 3 }{ 16 }\]

Answer 37

kinda depends....
is your question : (7/8 + 3/4) * 1/4 or 7/8 + (3/4 * 1/4)

Answer 38

I guess the first one. theres no parentheses in the equation tho

Answer 39

What DebbieG said

Answer 40

My mistake @jbrocksmysocks96

Answer 41

Then you need LCD of 8 and 16, build up the first equation:
\[=\frac{ 14 }{ 16 }+\frac{ 3 }{ 16 }=\frac{ 17 }{ 16 }\]

Answer 42

Thanks @DebbieG !

Answer 43

okay.

Answer 44

thank you !!

Answer 45

no problem. :)

Answer 46

Been Awhile since I've done fractions!

Answer 47

yeah, that's why im confused I have a couple more but I don't wanna bother you

Answer 48

Do you have a calculator?

Answer 49

As in one that does fractions?

Answer 50

I guess according to order of operations, you would multiply first

Answer 51

no :(

Answer 52

You can get one for around 20-30 dollars

Answer 53

well worth it

Answer 54

okay. well I need to figure out these questions now. I don't know what to do. I really don't understand fractions period

Answer 55

fractions are not that hard......when adding/subtracting fractions you need a common denominator. When multiplying, you just multiply straight across. When dividing, you " flip " the number you are dividing by, then multiply

Answer 56

Just remember this
To add make sure the denominator (base number) are the same and add the top number
To multiply just multiply both the top and bottom number across.

Answer 57

And remember
PEMDAS

Answer 58

good point :)

Answer 59

okay.

Answer 60

PLEASE (PARENTHESIS)
EXCUSE (EXPONENTS)
MY (MULTIPLY)
DEAR (DIVIDE)
AUNT (ADD)
SALLY (SUBTRACT
and multiplying and dividing
and adding and subtracting are interchangeable
if dividing comes becofe multiplying (or vice versa) do which ever comes first

Answer 61

you need anymore help ?

Answer 62

So Parenthesis first
then exponents
then multiplying &dividing or vice versa
then adding & subtracting or vice versa

Answer 63

this one equation is confusing me. (3/5-4/9) divided by 2/3

Answer 64

And when possible, always REDUCE first, THEN multiply. It will save you work reducing after the fact!

Answer 65

(3/5 - 4/9) / (2/3)

do the subtraction first...find the common denominator of 5 and 9

Answer 66

OK
\[(\frac{ 3 }{ 5 }-\frac{4}{9})/\frac{ 2 }{3 }\]

Answer 67

PEDMAS
do what's in the parenthesis first
common demenonater of 5 &9?

Answer 68

45? I don't know :(

Answer 69

RIGHT!

Answer 70

okay.

Answer 71

So \frac{3}{5} \frac{4} {9} to a base of 45

Answer 72

Sorry 3/5 & 4/9 change that to where the denominator is 45

Answer 73

so I multiply everything in 3/5 by 9? to get 27/45?

Answer 74

Correct!

Answer 75

Do the same for 4/9

Answer 76

20/45

Answer 77

and then id be left with 7/45 right?

Answer 78

Great! Now subtract
\[\frac{ 27 }{ 45 }-\frac{ 20 }{ 45 }\]

Answer 79

Right!

Answer 80

so now divide 7/45 by 2/3?

Answer 81

Do you know how to?

Answer 82

don't I have to do the reciprocal?

Answer 83

Yup!

Answer 84

so 7/45 times 3/2?

Answer 85

Correct!

Answer 86

21/90?

Answer 87

now simplify and your done!

Answer 88

7/30?

Answer 89

Correcto!

Answer 90

okay. I have one last one and that's it. if i explain each step can you go over it with me?

Answer 91

I can try :)

Answer 92

3/4-1/2 divided by 6/7

Answer 93

so first find a common denonminator of 4 and 2?

Answer 94

\[\frac{ 3 }{4}-\frac{ 1 }{ 2}/\frac{ 6 }{7 }\]

Answer 95

yes that's it

Answer 96

Not yet! Remember PEDMAS?

Answer 97

oh divide first

Answer 98

Thre arn't any parnthesis around 3/4 and 1/2 is there?