Subtract 81/84 from 4/36
4/36 - 81/84 is -215/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
4/36 = 4 × 7/36 × 7 = 28/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
81/84 = 81 × 3/84 × 3 = 243/252 - Subtract the two like fractions:
28/252 - 243/252 = 28 - 243/252 = -215/252
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