Subtract 72/28 from 45/8
1st number: 5 5/8, 2nd number: 2 16/28
45/8 - 72/28 is 171/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 28 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
45/8 = 45 × 7/8 × 7 = 315/56 - Likewise, for the 2nd fraction, since 28 × 2 = 56,
72/28 = 72 × 2/28 × 2 = 144/56 - Subtract the two like fractions:
315/56 - 144/56 = 315 - 144/56 = 171/56 - In mixed form: 33/56
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