Subtract 49/54 from 21/25
21/25 - 49/54 is -91/1350.
Steps for subtracting fractions
- 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,
49/54 = 49 × 25/54 × 25 = 1225/1350 - Subtract the two like fractions:
1134/1350 - 1225/1350 = 1134 - 1225/1350 = -91/1350
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