Subtract 4/36 from 21/25
21/25 - 4/36 is 164/225.
Steps for subtracting fractions
- 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,
21/25 = 21 × 36/25 × 36 = 756/900 - Likewise, for the 2nd fraction, since 36 × 25 = 900,
4/36 = 4 × 25/36 × 25 = 100/900 - Subtract the two like fractions:
756/900 - 100/900 = 756 - 100/900 = 656/900 - After reducing the fraction, the answer is 164/225
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