Add 30/81 and 18/5
1st number: 30/81, 2nd number: 3 3/5
30/81 + 18/5 is 536/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 5 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
30/81 = 30 × 5/81 × 5 = 150/405 - Likewise, for the 2nd fraction, since 5 × 81 = 405,
18/5 = 18 × 81/5 × 81 = 1458/405 - Add the two like fractions:
150/405 + 1458/405 = 150 + 1458/405 = 1608/405 - 1608/405 simplified gives 536/135
- So, 30/81 + 18/5 = 536/135
In mixed form: 3131/135
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