What is -8 1/2 + 3 3/5 as a proper fraction?

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Answer 1 · 2016-11-20T23:57:11

$-4 9/10$

First, turn your proper fractions into improper fractions.

$-8 1/2 + 3 3/5$

$-17/2 + 18/5$

You need to create a common denominator so that you can add the numerators. Multiply the left by 5 and the right by 2.

$-85/10 + 36/10$

$(-85 + 36) / 10$

$-49/10$

Convert that back to a proper fraction.

$-4 9/10$