Add 21/15 and 60/81
1st number: 1 6/15, 2nd number: 60/81
21/15 + 60/81 is 289/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 15 × 27 = 405,
21/15 = 21 × 27/15 × 27 = 567/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
60/81 = 60 × 5/81 × 5 = 300/405 - Add the two like fractions:
567/405 + 300/405 = 567 + 300/405 = 867/405 - 867/405 simplified gives 289/135
- So, 21/15 + 60/81 = 289/135
In mixed form: 219/135
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