Subtract 81/63 from 20/2
1st number: 10 0/2, 2nd number: 1 18/63
20/2 - 81/63 is 61/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 2 × 63 = 126,
20/2 = 20 × 63/2 × 63 = 1260/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
81/63 = 81 × 2/63 × 2 = 162/126 - Subtract the two like fractions:
1260/126 - 162/126 = 1260 - 162/126 = 1098/126 - After reducing the fraction, the answer is 61/7
- In mixed form: 85/7
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