Subtract 21/10 from 7/98
1st number: 7/98, 2nd number: 2 1/10
7/98 - 21/10 is -71/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 10 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
7/98 = 7 × 5/98 × 5 = 35/490 - Likewise, for the 2nd fraction, since 10 × 49 = 490,
21/10 = 21 × 49/10 × 49 = 1029/490 - Subtract the two like fractions:
35/490 - 1029/490 = 35 - 1029/490 = -994/490 - After reducing the fraction, the answer is -71/35
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