Subtract 42/54 from 12/24
12/24 - 42/54 is -5/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 24 × 9 = 216,
12/24 = 12 × 9/24 × 9 = 108/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
42/54 = 42 × 4/54 × 4 = 168/216 - Subtract the two like fractions:
108/216 - 168/216 = 108 - 168/216 = -60/216 - After reducing the fraction, the answer is -5/18
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