Add 18/10 and 20/81
1st number: 1 8/10, 2nd number: 20/81
18/10 + 20/81 is 829/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 10 × 81 = 810,
18/10 = 18 × 81/10 × 81 = 1458/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
20/81 = 20 × 10/81 × 10 = 200/810 - Add the two like fractions:
1458/810 + 200/810 = 1458 + 200/810 = 1658/810 - 1658/810 simplified gives 829/405
- So, 18/10 + 20/81 = 829/405
In mixed form: 219/405
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