Subtract 21/7 from 28/25
1st number: 1 3/25, 2nd number: 3 0/7
28/25 - 21/7 is -47/25.
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,
28/25 = 28 × 7/25 × 7 = 196/175 - Likewise, for the 2nd fraction, since 7 × 25 = 175,
21/7 = 21 × 25/7 × 25 = 525/175 - Subtract the two like fractions:
196/175 - 525/175 = 196 - 525/175 = -329/175 - After reducing the fraction, the answer is -47/25
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