Add 1/2 and 72/81
1/2 + 72/81 is 25/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 2 × 81 = 162,
1/2 = 1 × 81/2 × 81 = 81/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
72/81 = 72 × 2/81 × 2 = 144/162 - Add the two like fractions:
81/162 + 144/162 = 81 + 144/162 = 225/162 - 225/162 simplified gives 25/18
- So, 1/2 + 72/81 = 25/18
In mixed form: 17/18
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