Subtract 15/7 from 40/75
1st number: 40/75, 2nd number: 2 1/7
40/75 - 15/7 is -169/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 7 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
40/75 = 40 × 7/75 × 7 = 280/525 - Likewise, for the 2nd fraction, since 7 × 75 = 525,
15/7 = 15 × 75/7 × 75 = 1125/525 - Subtract the two like fractions:
280/525 - 1125/525 = 280 - 1125/525 = -845/525 - After reducing the fraction, the answer is -169/105
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