Subtract 20/42 from 25/60
25/60 - 20/42 is -5/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
25/60 = 25 × 7/60 × 7 = 175/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
20/42 = 20 × 10/42 × 10 = 200/420 - Subtract the two like fractions:
175/420 - 200/420 = 175 - 200/420 = -25/420 - After reducing the fraction, the answer is -5/84
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