Subtract 50/35 from 81/84
1st number: 81/84, 2nd number: 1 15/35
81/84 - 50/35 is -13/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 35 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
81/84 = 81 × 5/84 × 5 = 405/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
50/35 = 50 × 12/35 × 12 = 600/420 - Subtract the two like fractions:
405/420 - 600/420 = 405 - 600/420 = -195/420 - After reducing the fraction, the answer is -13/28
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