Add 1/81 and 3/72
1/81 + 3/72 is 35/648.
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,
3/72 = 3 × 9/72 × 9 = 27/648 - Add the two like fractions:
8/648 + 27/648 = 8 + 27/648 = 35/648 - So, 1/81 + 3/72 = 35/648
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