Subtract 81/16 from 20/12
1st number: 1 8/12, 2nd number: 5 1/16
20/12 - 81/16 is -163/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 16 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 12 × 4 = 48,
20/12 = 20 × 4/12 × 4 = 80/48 - Likewise, for the 2nd fraction, since 16 × 3 = 48,
81/16 = 81 × 3/16 × 3 = 243/48 - Subtract the two like fractions:
80/48 - 243/48 = 80 - 243/48 = -163/48
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