Subtract 28/7 from 20/25
1st number: 20/25, 2nd number: 4 0/7
20/25 - 28/7 is -16/5.
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,
28/7 = 28 × 25/7 × 25 = 700/175 - Subtract the two like fractions:
140/175 - 700/175 = 140 - 700/175 = -560/175 - After reducing the fraction, the answer is -16/5
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