Subtract 20/21 from 98/5
1st number: 19 3/5, 2nd number: 20/21
98/5 - 20/21 is 1958/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 5 × 21 = 105,
98/5 = 98 × 21/5 × 21 = 2058/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
20/21 = 20 × 5/21 × 5 = 100/105 - Subtract the two like fractions:
2058/105 - 100/105 = 2058 - 100/105 = 1958/105 - In mixed form: 1868/105
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