Subtract 3/21 from 98/5, Solve 19 3/5

Subtract 3/21 from 98/5

1^st number: 19 3/5, 2^nd number: 3/21

98/5 - 3/21 is 681/35.

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,
3/21 = 3 × 5/21 × 5 = 15/105
Subtract the two like fractions:
2058/105 - 15/105 = 2058 - 15/105 = 2043/105
After reducing the fraction, the answer is 681/35
In mixed form: 1916/35

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