Subtract 21/25 from 8/36
8/36 - 21/25 is -139/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 25 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 36 × 25 = 900,
8/36 = 8 × 25/36 × 25 = 200/900 - Likewise, for the 2nd fraction, since 25 × 36 = 900,
21/25 = 21 × 36/25 × 36 = 756/900 - Subtract the two like fractions:
200/900 - 756/900 = 200 - 756/900 = -556/900 - After reducing the fraction, the answer is -139/225
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