Subtract 14/25 from 21/40
21/40 - 14/25 is -7/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 25 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 40 × 5 = 200,
21/40 = 21 × 5/40 × 5 = 105/200 - Likewise, for the 2nd fraction, since 25 × 8 = 200,
14/25 = 14 × 8/25 × 8 = 112/200 - Subtract the two like fractions:
105/200 - 112/200 = 105 - 112/200 = -7/200
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