Subtract 10/81 from 40/2
1st number: 20 0/2, 2nd number: 10/81
40/2 - 10/81 is 1610/81.
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,
40/2 = 40 × 81/2 × 81 = 3240/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
10/81 = 10 × 2/81 × 2 = 20/162 - Subtract the two like fractions:
3240/162 - 20/162 = 3240 - 20/162 = 3220/162 - After reducing the fraction, the answer is 1610/81
- In mixed form: 1971/81
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