Subtract 72/56 from 1/20
1st number: 1/20, 2nd number: 1 16/56
1/20 - 72/56 is -173/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 20 × 14 = 280,
1/20 = 1 × 14/20 × 14 = 14/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
72/56 = 72 × 5/56 × 5 = 360/280 - Subtract the two like fractions:
14/280 - 360/280 = 14 - 360/280 = -346/280 - After reducing the fraction, the answer is -173/140
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