Subtract 21/36 from 7/25, Solve 7/25

Subtract 21/36 from 7/25

7/25 - 21/36 is -91/300.

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,
7/25 = 7 × 36/25 × 36 = 252/900
Likewise, for the 2nd fraction, since 36 × 25 = 900,
21/36 = 21 × 25/36 × 25 = 525/900
Subtract the two like fractions:
252/900 - 525/900 = 252 - 525/900 = -273/900
After reducing the fraction, the answer is -91/300

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