Add 21/24 and 3/81
21/24 + 3/81 is 197/216.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 24 × 27 = 648,
21/24 = 21 × 27/24 × 27 = 567/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
3/81 = 3 × 8/81 × 8 = 24/648 - Add the two like fractions:
567/648 + 24/648 = 567 + 24/648 = 591/648 - 591/648 simplified gives 197/216
- So, 21/24 + 3/81 = 197/216
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