Subtract 18/54 from 21/25
21/25 - 18/54 is 38/75.
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,
18/54 = 18 × 25/54 × 25 = 450/1350 - Subtract the two like fractions:
1134/1350 - 450/1350 = 1134 - 450/1350 = 684/1350 - After reducing the fraction, the answer is 38/75
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