Subtract 20/7 from 90/35
1st number: 2 20/35, 2nd number: 2 6/7
90/35 - 20/7 is -2/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 35 × 1 = 35,
90/35 = 90 × 1/35 × 1 = 90/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
20/7 = 20 × 5/7 × 5 = 100/35 - Subtract the two like fractions:
90/35 - 100/35 = 90 - 100/35 = -10/35 - After reducing the fraction, the answer is -2/7
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