Subtract 7/98 from 70/21
1st number: 3 7/21, 2nd number: 7/98
70/21 - 7/98 is 137/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 98 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 21 × 14 = 294,
70/21 = 70 × 14/21 × 14 = 980/294 - Likewise, for the 2nd fraction, since 98 × 3 = 294,
7/98 = 7 × 3/98 × 3 = 21/294 - Subtract the two like fractions:
980/294 - 21/294 = 980 - 21/294 = 959/294 - After reducing the fraction, the answer is 137/42
- In mixed form: 311/42
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