Add 72/81 and 50/15
1st number: 72/81, 2nd number: 3 5/15
72/81 + 50/15 is 38/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 15 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
72/81 = 72 × 5/81 × 5 = 360/405 - Likewise, for the 2nd fraction, since 15 × 27 = 405,
50/15 = 50 × 27/15 × 27 = 1350/405 - Add the two like fractions:
360/405 + 1350/405 = 360 + 1350/405 = 1710/405 - 1710/405 simplified gives 38/9
- So, 72/81 + 50/15 = 38/9
In mixed form: 42/9
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