Add 56/81 and 45/72
56/81 + 45/72 is 853/648.
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,
56/81 = 56 × 8/81 × 8 = 448/648 - Likewise, for the 2nd fraction, since 72 × 9 = 648,
45/72 = 45 × 9/72 × 9 = 405/648 - Add the two like fractions:
448/648 + 405/648 = 448 + 405/648 = 853/648 - So, 56/81 + 45/72 = 853/648
In mixed form: 1205/648
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