Subtract 45/24 from 12/42
1st number: 12/42, 2nd number: 1 21/24
12/42 - 45/24 is -89/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
12/42 = 12 × 4/42 × 4 = 48/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
45/24 = 45 × 7/24 × 7 = 315/168 - Subtract the two like fractions:
48/168 - 315/168 = 48 - 315/168 = -267/168 - After reducing the fraction, the answer is -89/56
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