Subtract 18/72 from 9/54
9/54 - 18/72 is -1/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 72 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 54 × 4 = 216,
9/54 = 9 × 4/54 × 4 = 36/216 - Likewise, for the 2nd fraction, since 72 × 3 = 216,
18/72 = 18 × 3/72 × 3 = 54/216 - Subtract the two like fractions:
36/216 - 54/216 = 36 - 54/216 = -18/216 - After reducing the fraction, the answer is -1/12
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