Add 1/81 and 8/72
1/81 + 8/72 is 10/81.
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,
1/81 = 1 × 8/81 × 8 = 8/648 - Likewise, for the 2nd fraction, since 72 × 9 = 648,
8/72 = 8 × 9/72 × 9 = 72/648 - Add the two like fractions:
8/648 + 72/648 = 8 + 72/648 = 80/648 - 80/648 simplified gives 10/81
- So, 1/81 + 8/72 = 10/81
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