Subtract 18/28 from 9/18
9/18 - 18/28 is -1/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
9/18 = 9 × 14/18 × 14 = 126/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
18/28 = 18 × 9/28 × 9 = 162/252 - Subtract the two like fractions:
126/252 - 162/252 = 126 - 162/252 = -36/252 - After reducing the fraction, the answer is -1/7
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