Add 81/72 and 30/81
1st number: 1 9/72, 2nd number: 30/81
81/72 + 30/81 is 323/216.
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,
81/72 = 81 × 9/72 × 9 = 729/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
30/81 = 30 × 8/81 × 8 = 240/648 - Add the two like fractions:
729/648 + 240/648 = 729 + 240/648 = 969/648 - 969/648 simplified gives 323/216
- So, 81/72 + 30/81 = 323/216
In mixed form: 1107/216
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