Subtract 9/7 from 20/25
1st number: 20/25, 2nd number: 1 2/7
20/25 - 9/7 is -17/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 7 is 175
Next, find the equivalent fraction of both fractional numbers with denominator 175 - For the 1st fraction, since 25 × 7 = 175,
20/25 = 20 × 7/25 × 7 = 140/175 - Likewise, for the 2nd fraction, since 7 × 25 = 175,
9/7 = 9 × 25/7 × 25 = 225/175 - Subtract the two like fractions:
140/175 - 225/175 = 140 - 225/175 = -85/175 - After reducing the fraction, the answer is -17/35
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