Subtract 16/18 from 18/28
18/28 - 16/18 is -31/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
18/28 = 18 × 9/28 × 9 = 162/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
16/18 = 16 × 14/18 × 14 = 224/252 - Subtract the two like fractions:
162/252 - 224/252 = 162 - 224/252 = -62/252 - After reducing the fraction, the answer is -31/126
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