Subtract 42/80 from 7/25
7/25 - 42/80 is -49/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 80 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 25 × 16 = 400,
7/25 = 7 × 16/25 × 16 = 112/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
42/80 = 42 × 5/80 × 5 = 210/400 - Subtract the two like fractions:
112/400 - 210/400 = 112 - 210/400 = -98/400 - After reducing the fraction, the answer is -49/200
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