Subtract 12/30 from 18/75
18/75 - 12/30 is -4/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
18/75 = 18 × 2/75 × 2 = 36/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
12/30 = 12 × 5/30 × 5 = 60/150 - Subtract the two like fractions:
36/150 - 60/150 = 36 - 60/150 = -24/150 - After reducing the fraction, the answer is -4/25
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