Subtract 18/28 from 28/12
1st number: 2 4/12, 2nd number: 18/28
28/12 - 18/28 is 71/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
28/12 = 28 × 7/12 × 7 = 196/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
18/28 = 18 × 3/28 × 3 = 54/84 - Subtract the two like fractions:
196/84 - 54/84 = 196 - 54/84 = 142/84 - After reducing the fraction, the answer is 71/42
- In mixed form: 129/42
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