Subtract 20/28 from 81/10
1st number: 8 1/10, 2nd number: 20/28
81/10 - 20/28 is 517/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
81/10 = 81 × 14/10 × 14 = 1134/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
20/28 = 20 × 5/28 × 5 = 100/140 - Subtract the two like fractions:
1134/140 - 100/140 = 1134 - 100/140 = 1034/140 - After reducing the fraction, the answer is 517/70
- In mixed form: 727/70
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