Subtract 40/7 from 81/25
1st number: 3 6/25, 2nd number: 5 5/7
81/25 - 40/7 is -433/175.
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,
81/25 = 81 × 7/25 × 7 = 567/175 - Likewise, for the 2nd fraction, since 7 × 25 = 175,
40/7 = 40 × 25/7 × 25 = 1000/175 - Subtract the two like fractions:
567/175 - 1000/175 = 567 - 1000/175 = -433/175
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