Add 7 4/5 + 8 4/5 = ?

15 8/5 or 16 3/5

7 4/5 + 8 4/5 = 16 3/5
If you split it up into 2 problems its easier. So do the whole numbers then the fractions.
if you add 7 + 8 you get 15
4/5 + 4/5 = 8/5 because only add the numerator.
8/5 actually equals 1 3/5 because 8 goes into 5 1 time with 3 left over.
Then, you add the two answers together.
1 3/5 + 15 = 16 3/5
Hope this helps =)

7 4/5 + 8 4/5
= (7 + 8) + (4/5 + 4/5)
= 15 + 8/5
= 15 + (5 + 3)/5
= 15 + 5/5 + 3/5
= 15 + 1 + 3/5
= 16 3/5

15 + 8/5 = 15 + 1 + 3/5 = 16 3/5

When adding fractions, if both the denominators(the bottom part are the same, then just add them...

7 4/5 + 8 4/5 =

7+8 +4/5 + 4/5 =

15 8/5 (reduce to 16 3/5)

:)

15 8/5, also known as 16 3/5.

To work it out, convert both numbers just to 5ths:

7 4/5 = 39/5
8 4/5 = 44/5

39/5 + 44/5 = 83/5 = 16 3/5

How do you know 7 4/5 = 39/5?
5*7=35, so 7 = 35/5
35/5 + 4/5 = 39/5

Same math for 8 4/5

7 4/5 + 8 4/5 = 15 + 1 3/5 = 16 3/5

7 4/5 + 8 4/5 =

1) 4/5 + 4/5 = 8/5
2) 8/5 = 8-5 = 3, 1 3/5
3) 7 + 8 = 15
4) 15 + 1 (the 1 from 1 and 3/5) = 16
5) 16 + 3/5 = your answer, 16 3/5

16 3/5

Convert these mixed fractions into improper fractions -

7 4/5 --- multiply 5 and 7 and add 4, so you get 39, now put that over 5
7 4/5 = 39/5

8 4/5 --- multiply 5 and 8 and add 4, so you get 44, now put that over 5
8 4/5 = 44/5

39/5 + 44/5 = 83/5 = 16 3/5

= 15 8/5
= 16 3/5