Add 15/10 and 18/81
1st number: 1 5/10, 2nd number: 18/81
15/10 + 18/81 is 31/18.
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,
15/10 = 15 × 81/10 × 81 = 1215/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
18/81 = 18 × 10/81 × 10 = 180/810 - Add the two like fractions:
1215/810 + 180/810 = 1215 + 180/810 = 1395/810 - 1395/810 simplified gives 31/18
- So, 15/10 + 18/81 = 31/18
In mixed form: 113/18
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