Subtract 10/81 from 20/60
20/60 - 10/81 is 17/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 81 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 60 × 27 = 1620,
20/60 = 20 × 27/60 × 27 = 540/1620 - Likewise, for the 2nd fraction, since 81 × 20 = 1620,
10/81 = 10 × 20/81 × 20 = 200/1620 - Subtract the two like fractions:
540/1620 - 200/1620 = 540 - 200/1620 = 340/1620 - After reducing the fraction, the answer is 17/81
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