Subtract 81/7 from 45/16
1st number: 2 13/16, 2nd number: 11 4/7
45/16 - 81/7 is -981/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 7 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 16 × 7 = 112,
45/16 = 45 × 7/16 × 7 = 315/112 - Likewise, for the 2nd fraction, since 7 × 16 = 112,
81/7 = 81 × 16/7 × 16 = 1296/112 - Subtract the two like fractions:
315/112 - 1296/112 = 315 - 1296/112 = -981/112
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