Subtract 28/16 from 20/12
1st number: 1 8/12, 2nd number: 1 12/16
20/12 - 28/16 is -1/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 16 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 12 × 4 = 48,
20/12 = 20 × 4/12 × 4 = 80/48 - Likewise, for the 2nd fraction, since 16 × 3 = 48,
28/16 = 28 × 3/16 × 3 = 84/48 - Subtract the two like fractions:
80/48 - 84/48 = 80 - 84/48 = -4/48 - After reducing the fraction, the answer is -1/12
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