Subtract 80/42 from 1/4
1st number: 1/4, 2nd number: 1 38/42
1/4 - 80/42 is -139/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
1/4 = 1 × 21/4 × 21 = 21/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
80/42 = 80 × 2/42 × 2 = 160/84 - Subtract the two like fractions:
21/84 - 160/84 = 21 - 160/84 = -139/84
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