Subtract 10/50 from 3/81
3/81 - 10/50 is -22/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 50 is 4050
Next, find the equivalent fraction of both fractional numbers with denominator 4050 - For the 1st fraction, since 81 × 50 = 4050,
3/81 = 3 × 50/81 × 50 = 150/4050 - Likewise, for the 2nd fraction, since 50 × 81 = 4050,
10/50 = 10 × 81/50 × 81 = 810/4050 - Subtract the two like fractions:
150/4050 - 810/4050 = 150 - 810/4050 = -660/4050 - After reducing the fraction, the answer is -22/135
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