Subtract 45/30 from 20/32, Solve 20/32

Subtract 45/30 from 20/32

1^st number: 20/32, 2^nd number: 1 15/30

20/32 - 45/30 is -7/8.

Find the least common denominator or LCM of the two denominators:
LCM of 32 and 30 is 480

Next, find the equivalent fraction of both fractional numbers with denominator 480
For the 1st fraction, since 32 × 15 = 480,
20/32 = 20 × 15/32 × 15 = 300/480
Likewise, for the 2nd fraction, since 30 × 16 = 480,
45/30 = 45 × 16/30 × 16 = 720/480
Subtract the two like fractions:
300/480 - 720/480 = 300 - 720/480 = -420/480
After reducing the fraction, the answer is -7/8

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