Add 84/8 and 21/81
1st number: 10 4/8, 2nd number: 21/81
84/8 + 21/81 is 581/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 8 × 81 = 648,
84/8 = 84 × 81/8 × 81 = 6804/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
21/81 = 21 × 8/81 × 8 = 168/648 - Add the two like fractions:
6804/648 + 168/648 = 6804 + 168/648 = 6972/648 - 6972/648 simplified gives 581/54
- So, 84/8 + 21/81 = 581/54
In mixed form: 1041/54
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