Subtract 20/84 from 49/60
49/60 - 20/84 is 81/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
49/60 = 49 × 7/60 × 7 = 343/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
20/84 = 20 × 5/84 × 5 = 100/420 - Subtract the two like fractions:
343/420 - 100/420 = 343 - 100/420 = 243/420 - After reducing the fraction, the answer is 81/140
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