Subtract 42/5 from 20/70
1st number: 20/70, 2nd number: 8 2/5
20/70 - 42/5 is -284/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 5 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
20/70 = 20 × 1/70 × 1 = 20/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
42/5 = 42 × 14/5 × 14 = 588/70 - Subtract the two like fractions:
20/70 - 588/70 = 20 - 588/70 = -568/70 - After reducing the fraction, the answer is -284/35
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