Subtract 90/7 from 20/2
1st number: 10 0/2, 2nd number: 12 6/7
20/2 - 90/7 is -20/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
20/2 = 20 × 7/2 × 7 = 140/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
90/7 = 90 × 2/7 × 2 = 180/14 - Subtract the two like fractions:
140/14 - 180/14 = 140 - 180/14 = -40/14 - After reducing the fraction, the answer is -20/7
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