Subtract 81/4 from 10/84
1st number: 10/84, 2nd number: 20 1/4
10/84 - 81/4 is -1691/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
10/84 = 10 × 1/84 × 1 = 10/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
81/4 = 81 × 21/4 × 21 = 1701/84 - Subtract the two like fractions:
10/84 - 1701/84 = 10 - 1701/84 = -1691/84
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