Subtract 42/75 from 3/15
3/15 - 42/75 is -9/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 75 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 15 × 5 = 75,
3/15 = 3 × 5/15 × 5 = 15/75 - Likewise, for the 2nd fraction, since 75 × 1 = 75,
42/75 = 42 × 1/75 × 1 = 42/75 - Subtract the two like fractions:
15/75 - 42/75 = 15 - 42/75 = -27/75 - After reducing the fraction, the answer is -9/25
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