Subtract 45/75 from 4/30
4/30 - 45/75 is -7/15.
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,
4/30 = 4 × 5/30 × 5 = 20/150 - Likewise, for the 2nd fraction, since 75 × 2 = 150,
45/75 = 45 × 2/75 × 2 = 90/150 - Subtract the two like fractions:
20/150 - 90/150 = 20 - 90/150 = -70/150 - After reducing the fraction, the answer is -7/15
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