Add 72/81 and 4/15
72/81 + 4/15 is 52/45.
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,
4/15 = 4 × 27/15 × 27 = 108/405 - Add the two like fractions:
360/405 + 108/405 = 360 + 108/405 = 468/405 - 468/405 simplified gives 52/45
- So, 72/81 + 4/15 = 52/45
In mixed form: 17/45
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