Subtract 9/54 from 21/25, Solve 21/25

Subtract 9/54 from 21/25

21/25 - 9/54 is 101/150.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 54 is 1350

Next, find the equivalent fraction of both fractional numbers with denominator 1350
For the 1st fraction, since 25 × 54 = 1350,
21/25 = 21 × 54/25 × 54 = 1134/1350
Likewise, for the 2nd fraction, since 54 × 25 = 1350,
9/54 = 9 × 25/54 × 25 = 225/1350
Subtract the two like fractions:
1134/1350 - 225/1350 = 1134 - 225/1350 = 909/1350
After reducing the fraction, the answer is 101/150

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