Subtract 2/7 from 80/42
1st number: 1 38/42, 2nd number: 2/7
80/42 - 2/7 is 34/21.
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,
80/42 = 80 × 1/42 × 1 = 80/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
2/7 = 2 × 6/7 × 6 = 12/42 - Subtract the two like fractions:
80/42 - 12/42 = 80 - 12/42 = 68/42 - After reducing the fraction, the answer is 34/21
- In mixed form: 113/21
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