Subtract 42/75 from 18/30
18/30 - 42/75 is 1/25.
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,
18/30 = 18 × 5/30 × 5 = 90/150 - Likewise, for the 2nd fraction, since 75 × 2 = 150,
42/75 = 42 × 2/75 × 2 = 84/150 - Subtract the two like fractions:
90/150 - 84/150 = 90 - 84/150 = 6/150 - After reducing the fraction, the answer is 1/25
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