Subtract 9/32 from 20/75, Solve 20/75

Subtract 9/32 from 20/75

20/75 - 9/32 is -7/480.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 32 is 2400

Next, find the equivalent fraction of both fractional numbers with denominator 2400
For the 1st fraction, since 75 × 32 = 2400,
20/75 = 20 × 32/75 × 32 = 640/2400
Likewise, for the 2nd fraction, since 32 × 75 = 2400,
9/32 = 9 × 75/32 × 75 = 675/2400
Subtract the two like fractions:
640/2400 - 675/2400 = 640 - 675/2400 = -35/2400
After reducing the fraction, the answer is -7/480

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