Subtract 1/12 from 80/42
1st number: 1 38/42, 2nd number: 1/12
80/42 - 1/12 is 51/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
80/42 = 80 × 2/42 × 2 = 160/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
1/12 = 1 × 7/12 × 7 = 7/84 - Subtract the two like fractions:
160/84 - 7/84 = 160 - 7/84 = 153/84 - After reducing the fraction, the answer is 51/28
- In mixed form: 123/28
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