Add 10/72 and 20/81
10/72 + 20/81 is 125/324.
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,
10/72 = 10 × 9/72 × 9 = 90/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
20/81 = 20 × 8/81 × 8 = 160/648 - Add the two like fractions:
90/648 + 160/648 = 90 + 160/648 = 250/648 - 250/648 simplified gives 125/324
- So, 10/72 + 20/81 = 125/324
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