Subtract 4/75 from 21/36
21/36 - 4/75 is 53/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 75 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 36 × 25 = 900,
21/36 = 21 × 25/36 × 25 = 525/900 - Likewise, for the 2nd fraction, since 75 × 12 = 900,
4/75 = 4 × 12/75 × 12 = 48/900 - Subtract the two like fractions:
525/900 - 48/900 = 525 - 48/900 = 477/900 - After reducing the fraction, the answer is 53/100
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