Subtract 80/4 from 6/42
1st number: 6/42, 2nd number: 20 0/4
6/42 - 80/4 is -139/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
6/42 = 6 × 2/42 × 2 = 12/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
80/4 = 80 × 21/4 × 21 = 1680/84 - Subtract the two like fractions:
12/84 - 1680/84 = 12 - 1680/84 = -1668/84 - After reducing the fraction, the answer is -139/7
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