Subtract 70/24 from 80/42
1st number: 1 38/42, 2nd number: 2 22/24
80/42 - 70/24 is -85/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
80/42 = 80 × 4/42 × 4 = 320/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
70/24 = 70 × 7/24 × 7 = 490/168 - Subtract the two like fractions:
320/168 - 490/168 = 320 - 490/168 = -170/168 - After reducing the fraction, the answer is -85/84
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