Subtract 42/8 from 72/28
1st number: 2 16/28, 2nd number: 5 2/8
72/28 - 42/8 is -75/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 28 × 2 = 56,
72/28 = 72 × 2/28 × 2 = 144/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
42/8 = 42 × 7/8 × 7 = 294/56 - Subtract the two like fractions:
144/56 - 294/56 = 144 - 294/56 = -150/56 - After reducing the fraction, the answer is -75/28
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