Subtract 81/72 from 56/20
1st number: 2 16/20, 2nd number: 1 9/72
56/20 - 81/72 is 67/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 20 × 18 = 360,
56/20 = 56 × 18/20 × 18 = 1008/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
81/72 = 81 × 5/72 × 5 = 405/360 - Subtract the two like fractions:
1008/360 - 405/360 = 1008 - 405/360 = 603/360 - After reducing the fraction, the answer is 67/40
- In mixed form: 127/40
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