Subtract 20/8 from 81/14
1st number: 5 11/14, 2nd number: 2 4/8
81/14 - 20/8 is 23/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 14 × 4 = 56,
81/14 = 81 × 4/14 × 4 = 324/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
20/8 = 20 × 7/8 × 7 = 140/56 - Subtract the two like fractions:
324/56 - 140/56 = 324 - 140/56 = 184/56 - After reducing the fraction, the answer is 23/7
- In mixed form: 32/7
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