Add 40/15 and 36/81
1st number: 2 10/15, 2nd number: 36/81
40/15 + 36/81 is 28/9.
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,
40/15 = 40 × 27/15 × 27 = 1080/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
36/81 = 36 × 5/81 × 5 = 180/405 - Add the two like fractions:
1080/405 + 180/405 = 1080 + 180/405 = 1260/405 - 1260/405 simplified gives 28/9
- So, 40/15 + 36/81 = 28/9
In mixed form: 31/9
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