Subtract 60/18 from 80/42
1st number: 1 38/42, 2nd number: 3 6/18
80/42 - 60/18 is -10/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
80/42 = 80 × 3/42 × 3 = 240/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
60/18 = 60 × 7/18 × 7 = 420/126 - Subtract the two like fractions:
240/126 - 420/126 = 240 - 420/126 = -180/126 - After reducing the fraction, the answer is -10/7
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