Subtract 21/27 from 28/12
1st number: 2 4/12, 2nd number: 21/27
28/12 - 21/27 is 14/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
28/12 = 28 × 9/12 × 9 = 252/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
21/27 = 21 × 4/27 × 4 = 84/108 - Subtract the two like fractions:
252/108 - 84/108 = 252 - 84/108 = 168/108 - After reducing the fraction, the answer is 14/9
- In mixed form: 15/9
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