Subtract 16/36 from 21/25, Solve 21/25

Subtract 16/36 from 21/25

21/25 - 16/36 is 89/225.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 36 is 900

Next, find the equivalent fraction of both fractional numbers with denominator 900
For the 1st fraction, since 25 × 36 = 900,
21/25 = 21 × 36/25 × 36 = 756/900
Likewise, for the 2nd fraction, since 36 × 25 = 900,
16/36 = 16 × 25/36 × 25 = 400/900
Subtract the two like fractions:
756/900 - 400/900 = 756 - 400/900 = 356/900
After reducing the fraction, the answer is 89/225

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