Subtract 12/28 from 21/3
1st number: 7 0/3, 2nd number: 12/28
21/3 - 12/28 is 46/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 3 × 28 = 84,
21/3 = 21 × 28/3 × 28 = 588/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
12/28 = 12 × 3/28 × 3 = 36/84 - Subtract the two like fractions:
588/84 - 36/84 = 588 - 36/84 = 552/84 - After reducing the fraction, the answer is 46/7
- In mixed form: 64/7
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