Subtract 1/7 from 2/42
2/42 - 1/7 is -2/21.
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,
2/42 = 2 × 1/42 × 1 = 2/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
1/7 = 1 × 6/7 × 6 = 6/42 - Subtract the two like fractions:
2/42 - 6/42 = 2 - 6/42 = -4/42 - After reducing the fraction, the answer is -2/21
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