Add 54/81 and 30/72
54/81 + 30/72 is 13/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 72 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 81 × 8 = 648,
54/81 = 54 × 8/81 × 8 = 432/648 - Likewise, for the 2nd fraction, since 72 × 9 = 648,
30/72 = 30 × 9/72 × 9 = 270/648 - Add the two like fractions:
432/648 + 270/648 = 432 + 270/648 = 702/648 - 702/648 simplified gives 13/12
- So, 54/81 + 30/72 = 13/12
In mixed form: 11/12
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