Subtract 42/15 from 9/54
1st number: 9/54, 2nd number: 2 12/15
9/54 - 42/15 is -79/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 15 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
9/54 = 9 × 5/54 × 5 = 45/270 - Likewise, for the 2nd fraction, since 15 × 18 = 270,
42/15 = 42 × 18/15 × 18 = 756/270 - Subtract the two like fractions:
45/270 - 756/270 = 45 - 756/270 = -711/270 - After reducing the fraction, the answer is -79/30
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