Subtract 28/3 from 12/42
1st number: 12/42, 2nd number: 9 1/3
12/42 - 28/3 is -190/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 3 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
12/42 = 12 × 1/42 × 1 = 12/42 - Likewise, for the 2nd fraction, since 3 × 14 = 42,
28/3 = 28 × 14/3 × 14 = 392/42 - Subtract the two like fractions:
12/42 - 392/42 = 12 - 392/42 = -380/42 - After reducing the fraction, the answer is -190/21
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