Subtract 42/81 from 56/35
1st number: 1 21/35, 2nd number: 42/81
56/35 - 42/81 is 146/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 81 is 2835
Next, find the equivalent fraction of both fractional numbers with denominator 2835 - For the 1st fraction, since 35 × 81 = 2835,
56/35 = 56 × 81/35 × 81 = 4536/2835 - Likewise, for the 2nd fraction, since 81 × 35 = 2835,
42/81 = 42 × 35/81 × 35 = 1470/2835 - Subtract the two like fractions:
4536/2835 - 1470/2835 = 4536 - 1470/2835 = 3066/2835 - After reducing the fraction, the answer is 146/135
- In mixed form: 111/135
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