Subtract 18/54 from 9/72
9/72 - 18/54 is -5/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
9/72 = 9 × 3/72 × 3 = 27/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
18/54 = 18 × 4/54 × 4 = 72/216 - Subtract the two like fractions:
27/216 - 72/216 = 27 - 72/216 = -45/216 - After reducing the fraction, the answer is -5/24
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