There are 20 socks in a drawer. • 2/5 of them are white

• 1/4 of them are black

• The rest are gray.

How many socks are gray?

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7

Step-by-step explanation:

Make the fractions have a denominator of 20.

2/5 times the top and bottom by 4 (because 5 times 4 = 20) = 8/20

So 8 socks are white

1/4 times 5 = 5/20

So 5 socks are black

Add them and subtract from 20 to get the number of gray socks

20-13=7

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