Subtract 15/4 from 72/27
1st number: 2 18/27, 2nd number: 3 3/4
72/27 - 15/4 is -13/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 4 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 27 × 4 = 108,
72/27 = 72 × 4/27 × 4 = 288/108 - Likewise, for the 2nd fraction, since 4 × 27 = 108,
15/4 = 15 × 27/4 × 27 = 405/108 - Subtract the two like fractions:
288/108 - 405/108 = 288 - 405/108 = -117/108 - After reducing the fraction, the answer is -13/12
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