Subtract 30/15 from 40/75
1st number: 40/75, 2nd number: 2 0/15
40/75 - 30/15 is -22/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 15 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 75 × 1 = 75,
40/75 = 40 × 1/75 × 1 = 40/75 - Likewise, for the 2nd fraction, since 15 × 5 = 75,
30/15 = 30 × 5/15 × 5 = 150/75 - Subtract the two like fractions:
40/75 - 150/75 = 40 - 150/75 = -110/75 - After reducing the fraction, the answer is -22/15
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