Subtract 10/28 from 70/21
1st number: 3 7/21, 2nd number: 10/28
70/21 - 10/28 is 125/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
70/21 = 70 × 4/21 × 4 = 280/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
10/28 = 10 × 3/28 × 3 = 30/84 - Subtract the two like fractions:
280/84 - 30/84 = 280 - 30/84 = 250/84 - After reducing the fraction, the answer is 125/42
- In mixed form: 241/42
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