Add 15/81 and 28/5
1st number: 15/81, 2nd number: 5 3/5
15/81 + 28/5 is 781/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 5 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
15/81 = 15 × 5/81 × 5 = 75/405 - Likewise, for the 2nd fraction, since 5 × 81 = 405,
28/5 = 28 × 81/5 × 81 = 2268/405 - Add the two like fractions:
75/405 + 2268/405 = 75 + 2268/405 = 2343/405 - 2343/405 simplified gives 781/135
- So, 15/81 + 28/5 = 781/135
In mixed form: 5106/135
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