Add 80/72 and 25/81
1st number: 1 8/72, 2nd number: 25/81
80/72 + 25/81 is 115/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 72 × 9 = 648,
80/72 = 80 × 9/72 × 9 = 720/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
25/81 = 25 × 8/81 × 8 = 200/648 - Add the two like fractions:
720/648 + 200/648 = 720 + 200/648 = 920/648 - 920/648 simplified gives 115/81
- So, 80/72 + 25/81 = 115/81
In mixed form: 134/81
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