Subtract 5/15 from 5/42
5/42 - 5/15 is -3/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
5/42 = 5 × 5/42 × 5 = 25/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
5/15 = 5 × 14/15 × 14 = 70/210 - Subtract the two like fractions:
25/210 - 70/210 = 25 - 70/210 = -45/210 - After reducing the fraction, the answer is -3/14
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