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Fractions Help

Audrey Said:

Can you help me reduce these fractions?

We Answered:

Answer (1): 23/100 can't be further reduced.
-----------
= 58/100 or (58/2)/(100/2)
= 29/50

Answer (2): 29/50
-----------
= 122/1,000 or (122/2)/(1,000/2)
= 61/500

Answer (3): 61/50
-----------
= 456/1,000 or (456/8)/(1,000/8)
= 57/125

Answer (4): 57/125

Martha Said:

Fractions... HELP!?

We Answered:

You're not stupid, don't worry.

15/46 can't be simplified any further. If it were 15/45, then it would be 1/3, but 15 and 46 have no common denominators.

Benjamin Said:

fractions help?

We Answered:

With adding and subtracting fractions, you need to have the same denominator (the bottom part), or you will not be able to add/subtract.

Example:
5/6 + 2/3
1) Find the common denominator. 3 goes into 6, so you would need to multiply the second number by 2 to make the denominator 6.
5/6 +4/6

2) Add
9/6

3) Simplify
9/6 = 1 3/6 = 1 1/2

Pauline Said:

Fractions help?

We Answered:

to add or subtract - the denomenators must be the same
i.e. 1/2 + 3/4 =
2/4 + 3/4 etc

to multiply = mutiply numerators to numeratos and
denominators to denominators

to divide - - - take the fraction you are dividing by and INVERT it
then multiply as above

all the best x 100/3

Beth Said:

2 Fractions and Decimals Word Problems Help?

We Answered:

= 74/100 or (74/2)/(100/2)
= 37/50 or 0.74

Answer: 37/50 or 0.74
-----------
= 12/30 or (12/6)/(30/6)
= 2/5 or 0.4

Answer: 2/5 or 0.4

Janice Said:

Help with fractions (Year 9 13 years old)?

We Answered:

Ok.
2/5 = x/10
This is called a proportion.
To solve this proportion, you can cross multiply of find a common number you can multiply to.

Easy Way(Common Number to Multiply)
how do you get from 5 to 10? you multiply by 2. --> 5x2=10 since you multiplied the denominator, you have to multiply the numerator by 2 also. what's 2x2 equal to? 2x2 = 4
so 2/5 also equals 4/10.

Hard Way(Cross Multiply)
2 x
_ = _

5 10


you multiply by crossing.
5 times x equals 5x AND 2 times 10 equals 20
5x = 20
you need to get the x all alone
to go that, you multiply by 5.

5x = 20
_ __

5 5

the 5/5 crosses out and 20/5 equals 4
so x will equal 4



ANY WAY YOU DO IT..... x = 4

Mitchell Said:

i need help with fractions?

We Answered:

To get rid of the fraction, you multiply both sides by 3 which cancels the 3 on the bottom. You end up with
18n = 2(5n - 2)
18n = 10n - 4
8n = -4
n = - 4/8 or reduced, - 1/2

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