Subtract 12/25 from 3/42
3/42 - 12/25 is -143/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 25 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 42 × 25 = 1050,
3/42 = 3 × 25/42 × 25 = 75/1050 - Likewise, for the 2nd fraction, since 25 × 42 = 1050,
12/25 = 12 × 42/25 × 42 = 504/1050 - Subtract the two like fractions:
75/1050 - 504/1050 = 75 - 504/1050 = -429/1050 - After reducing the fraction, the answer is -143/350
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