Subtract 18/25 from 20/36
20/36 - 18/25 is -37/225.
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,
20/36 = 20 × 25/36 × 25 = 500/900 - Likewise, for the 2nd fraction, since 25 × 36 = 900,
18/25 = 18 × 36/25 × 36 = 648/900 - Subtract the two like fractions:
500/900 - 648/900 = 500 - 648/900 = -148/900 - After reducing the fraction, the answer is -37/225
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