Add 81/5 and 10/21
1st number: 16 1/5, 2nd number: 10/21
81/5 + 10/21 is 1751/105.
Steps for adding 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,
81/5 = 81 × 21/5 × 21 = 1701/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
10/21 = 10 × 5/21 × 5 = 50/105 - Add the two like fractions:
1701/105 + 50/105 = 1701 + 50/105 = 1751/105 - So, 81/5 + 10/21 = 1751/105
In mixed form: 1671/105
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