Subtract 40/75 from 1/30
1/30 - 40/75 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 75 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
1/30 = 1 × 5/30 × 5 = 5/150 - Likewise, for the 2nd fraction, since 75 × 2 = 150,
40/75 = 40 × 2/75 × 2 = 80/150 - Subtract the two like fractions:
5/150 - 80/150 = 5 - 80/150 = -75/150 - After reducing the fraction, the answer is -1/2
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