Question

Simones age is 4/5 of her sisters age. What fraction of the total age of both girls is her sisters age?

Answer 1

@Benji

Answer 2

Okay, if Simone's sister is 25 (I chose 25 because it is divisible by 5), how old is Simone if she is 4/5 her sister's age?

Answer 3

so would i divide 25 by 4/5?

Answer 4

wait but isnt 20 divisible by 5 too?

Answer 5

20 is divisible by 5 too, yes, but I chose 25 because I cheated and it's also divisible by 4, haha. If 25/5 = 5, than what is 4/5 of 25, or 4*5?

Answer 6

im not sure

Answer 7

If her sister is 25, and Simone is 4/5 of her age, than she would be 20, because 25/5=5 and 4*5=20

Answer 8

So Simone is 20 and her sister is 25, what is the total if their ages are put together?

Answer 9

45

Answer 10

Yes, so what is the fraction of her sisters age over the sum of both their ages?

Answer 11

25/45

Answer 12

Exactly, that can be simplified a little though, both are divisible by 5.

Answer 13

ok 5/9?

Answer 14

Yep, So Simone is 4/5 of her sisters age, her sister is 5/9 of their total age.

Answer 15

OOOHHH okay thanks so much again!

Answer 16

yep

Answer 17

:)