Subtract 81/16 from 5/18
1st number: 5/18, 2nd number: 5 1/16
5/18 - 81/16 is -689/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 18 × 8 = 144,
5/18 = 5 × 8/18 × 8 = 40/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
81/16 = 81 × 9/16 × 9 = 729/144 - Subtract the two like fractions:
40/144 - 729/144 = 40 - 729/144 = -689/144
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