Subtract 80/35 from 90/42
1st number: 2 6/42, 2nd number: 2 10/35
90/42 - 80/35 is -1/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
90/42 = 90 × 5/42 × 5 = 450/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
80/35 = 80 × 6/35 × 6 = 480/210 - Subtract the two like fractions:
450/210 - 480/210 = 450 - 480/210 = -30/210 - After reducing the fraction, the answer is -1/7
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