How do you simplify $- \frac{2}{8} + \frac{3}{5}$ $-2/8+3/5$ ?

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Answer 1 · 2016-08-30T07:33:16

$\frac{7}{20}$ $7/20$

Before you can add or subtract fractions, they need to have the same denominators. In this case it will be 40.

40 is the LCD - the first number that both 8 and 5 can divide into.

Make equivalent fractions:

$- \frac{2}{8} \times \frac{5}{5} + \frac{3}{5} \times \frac{8}{8}$ $-2/8 color(red)(xx5/5) + 3/5 color(blue)(xx8/8)$

= $\frac{- 10 + 24}{40}$ $(-10 +24)/40$

= $\frac{14}{40} \frac{\div 2}{\div 2}$ $14/40 (div2)/(div2)$ to simplify

= $\frac{7}{20}$ $7/20$

How do you simplify −28+35-2/8+3/5?