Subtract 42/24 from 12/84
1st number: 12/84, 2nd number: 1 18/24
12/84 - 42/24 is -45/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
12/84 = 12 × 2/84 × 2 = 24/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
42/24 = 42 × 7/24 × 7 = 294/168 - Subtract the two like fractions:
24/168 - 294/168 = 24 - 294/168 = -270/168 - After reducing the fraction, the answer is -45/28
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