Subtract 7/81 from 20/2
1st number: 10 0/2, 2nd number: 7/81
20/2 - 7/81 is 803/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 2 × 81 = 162,
20/2 = 20 × 81/2 × 81 = 1620/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
7/81 = 7 × 2/81 × 2 = 14/162 - Subtract the two like fractions:
1620/162 - 14/162 = 1620 - 14/162 = 1606/162 - After reducing the fraction, the answer is 803/81
- In mixed form: 974/81
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