Subtract 81/36 from 7/18
1st number: 7/18, 2nd number: 2 9/36
7/18 - 81/36 is -67/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
7/18 = 7 × 2/18 × 2 = 14/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
81/36 = 81 × 1/36 × 1 = 81/36 - Subtract the two like fractions:
14/36 - 81/36 = 14 - 81/36 = -67/36
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