Subtract 30/20 from 20/32, Solve 20/32

Subtract 30/20 from 20/32

1^st number: 20/32, 2^nd number: 1 10/20

20/32 - 30/20 is -7/8.

Find the least common denominator or LCM of the two denominators:
LCM of 32 and 20 is 160

Next, find the equivalent fraction of both fractional numbers with denominator 160
For the 1st fraction, since 32 × 5 = 160,
20/32 = 20 × 5/32 × 5 = 100/160
Likewise, for the 2nd fraction, since 20 × 8 = 160,
30/20 = 30 × 8/20 × 8 = 240/160
Subtract the two like fractions:
100/160 - 240/160 = 100 - 240/160 = -140/160
After reducing the fraction, the answer is -7/8

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