Add 18/8 and 20/81
1st number: 2 2/8, 2nd number: 20/81
18/8 + 20/81 is 809/324.
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,
18/8 = 18 × 81/8 × 81 = 1458/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
20/81 = 20 × 8/81 × 8 = 160/648 - Add the two like fractions:
1458/648 + 160/648 = 1458 + 160/648 = 1618/648 - 1618/648 simplified gives 809/324
- So, 18/8 + 20/81 = 809/324
In mixed form: 2161/324
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