Subtract 20/7 from 6/42
1st number: 6/42, 2nd number: 2 6/7
6/42 - 20/7 is -19/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
6/42 = 6 × 1/42 × 1 = 6/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
20/7 = 20 × 6/7 × 6 = 120/42 - Subtract the two like fractions:
6/42 - 120/42 = 6 - 120/42 = -114/42 - After reducing the fraction, the answer is -19/7
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