Subtract 21/54 from 70/28
1st number: 2 14/28, 2nd number: 21/54
70/28 - 21/54 is 19/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
70/28 = 70 × 27/28 × 27 = 1890/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
21/54 = 21 × 14/54 × 14 = 294/756 - Subtract the two like fractions:
1890/756 - 294/756 = 1890 - 294/756 = 1596/756 - After reducing the fraction, the answer is 19/9
- In mixed form: 21/9
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