Subtract 8/25 from 12/42
12/42 - 8/25 is -6/175.
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,
12/42 = 12 × 25/42 × 25 = 300/1050 - Likewise, for the 2nd fraction, since 25 × 42 = 1050,
8/25 = 8 × 42/25 × 42 = 336/1050 - Subtract the two like fractions:
300/1050 - 336/1050 = 300 - 336/1050 = -36/1050 - After reducing the fraction, the answer is -6/175
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