## anonymous 5 years ago what is 18 1/15 - 9 3/5

1. anonymous

you mean 18/15 - 27/5? if so it equals 4.2 or 21/5

2. anonymous

is it$18 {1 \over 15} - 9 {3 \over 5}$ ?

3. anonymous

yes yuki

4. anonymous

mixed numbers are fairly easy when you understand that it can also be changed into an equivalent improper fraction

5. anonymous

ooh 271/15 - 48/5 = 31/5 ? lol i think

6. anonymous

which is 6 5/1

7. anonymous

for example, $18 {1 \over 15}= 18 + {1 \over 15}$ so ${18*15+1 \over 15} = {217 \over 15}$

8. anonymous

you do the same thing with the other fraction, but before we do that, we need to make the denominator common. so instead of $9 {3 \over 5}$ we will use $9 {9 \over 15}$ which as an improper fraction, is ${9*15+9 \over 15} = {144 \over 15}$

9. anonymous

Who elsee gott daht?

10. anonymous

now if you subtract them, ${217 - 144 \over 15} = {73 \over 15}$

11. anonymous

if you need it as a mixed number, 73 / 15 = 4 remainder 13 so $4 {13 \over 15}$

12. anonymous

I GOT DIFF.

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