Add 30/18 and 5/81
1st number: 1 12/18, 2nd number: 5/81
30/18 + 5/81 is 140/81.
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,
30/18 = 30 × 9/18 × 9 = 270/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
5/81 = 5 × 2/81 × 2 = 10/162 - Add the two like fractions:
270/162 + 10/162 = 270 + 10/162 = 280/162 - 280/162 simplified gives 140/81
- So, 30/18 + 5/81 = 140/81
In mixed form: 159/81
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