# Math Help - word fraction question

1. ## word fraction question

hi this is my question:

21 chocs in a box. James had $\frac{2}{7}$
of it, claire had $\frac{3}{5}$
of left over. how many chocs left?

i can do it if someone can tell me how to do the first part which is to work out how many james had

2. Originally Posted by andyboy179
hi this is my question:

21 chocs in a box. James had $\frac{2}{7}$
of it, claire had $\frac{3}{5}$
of left over. how many chocs left?

i can do it if someone can tell me how to do the first part which is to work out how many james had
HI

21 x 2/7 =6 .

HI

21 x 2/7 =6 .

to get that would i do 21/7=3 the it says i got 2 of them so 3X2=6?

how would i work out claires bit???

4. Originally Posted by andyboy179
21 chocs in a box. James had $\frac{2}{7}$
If there are twenty-one in total, then how many are in one-seventh? (Hint: Divide 21 by 7.)

Then how many are in two-sevenths? (Hint: Multiply the number in one-seventh by 2.)

Then how many are left after he's had his? (Hint: Subtract the number for two-sevenths from 21.)

Originally Posted by andyboy179
of it, claire had $\frac{3}{5}$
of left over.
Given how many were left over, what is one-fifth of this? (Hint: Divide by 5.)

Then how many are three-fifths of this? (Hint: Multiply the number for one-fifth by 3.)

Then how many are left, after she's had hers? (Hint: Subtract the number for three-fifths from the number she's started with.)

5. ## really hard percentage, ratio, and indices question

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6. Originally Posted by stapel
If there are twenty-one in total, then how many are in one-seventh? (Hint: Divide 21 by 7.)

Then how many are in two-sevenths? (Hint: Multiply the number in one-seventh by 2.)

Then how many are left after he's had his? (Hint: Subtract the number for two-sevenths from 21.)

Given how many were left over, what is one-fifth of this? (Hint: Divide by 5.)

Then how many are three-fifths of this? (Hint: Multiply the number for one-fifth by 3.)

Then how many are left, after she's had hers? (Hint: Subtract the number for three-fifths from the number she's started with.)

im VERY confused!

so would james have 6?

then there would be 15 chocs left?

then would i do 15 divided by 5 =3
3+3+3= 9

9+6=15
21-15=6

7. Originally Posted by andyboy179
im VERY confused!

so would james have 6? Yes

then there would be 15 chocs left? yes

then would i do 15 divided by 5 =3
3+3+3= 9

9+6=15
21-15=6