Subtract 40/15 from 7/54
1st number: 7/54, 2nd number: 2 10/15
7/54 - 40/15 is -137/54.
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,
7/54 = 7 × 5/54 × 5 = 35/270 - Likewise, for the 2nd fraction, since 15 × 18 = 270,
40/15 = 40 × 18/15 × 18 = 720/270 - Subtract the two like fractions:
35/270 - 720/270 = 35 - 720/270 = -685/270 - After reducing the fraction, the answer is -137/54
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