Add 81/18 and 72/81
1st number: 4 9/18, 2nd number: 72/81
81/18 + 72/81 is 97/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 18 × 9 = 162,
81/18 = 81 × 9/18 × 9 = 729/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
72/81 = 72 × 2/81 × 2 = 144/162 - Add the two like fractions:
729/162 + 144/162 = 729 + 144/162 = 873/162 - 873/162 simplified gives 97/18
- So, 81/18 + 72/81 = 97/18
In mixed form: 57/18
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