Subtract 20/81 from 42/35
1st number: 1 7/35, 2nd number: 20/81
42/35 - 20/81 is 386/405.
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,
42/35 = 42 × 81/35 × 81 = 3402/2835 - Likewise, for the 2nd fraction, since 81 × 35 = 2835,
20/81 = 20 × 35/81 × 35 = 700/2835 - Subtract the two like fractions:
3402/2835 - 700/2835 = 3402 - 700/2835 = 2702/2835 - After reducing the fraction, the answer is 386/405
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