Subtract 42/48 from 21/25
21/25 - 42/48 is -7/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 48 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 25 × 48 = 1200,
21/25 = 21 × 48/25 × 48 = 1008/1200 - Likewise, for the 2nd fraction, since 48 × 25 = 1200,
42/48 = 42 × 25/48 × 25 = 1050/1200 - Subtract the two like fractions:
1008/1200 - 1050/1200 = 1008 - 1050/1200 = -42/1200 - After reducing the fraction, the answer is -7/200
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