Subtract 84/12 from 5/15
1st number: 5/15, 2nd number: 7 0/12
5/15 - 84/12 is -20/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
5/15 = 5 × 4/15 × 4 = 20/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
84/12 = 84 × 5/12 × 5 = 420/60 - Subtract the two like fractions:
20/60 - 420/60 = 20 - 420/60 = -400/60 - After reducing the fraction, the answer is -20/3
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