Subtract 98/10 from 10/21
1st number: 10/21, 2nd number: 9 8/10
10/21 - 98/10 is -979/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
10/21 = 10 × 10/21 × 10 = 100/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
98/10 = 98 × 21/10 × 21 = 2058/210 - Subtract the two like fractions:
100/210 - 2058/210 = 100 - 2058/210 = -1958/210 - After reducing the fraction, the answer is -979/105
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