Add 30/2 and 21/81
1st number: 15 0/2, 2nd number: 21/81
30/2 + 21/81 is 412/27.
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,
30/2 = 30 × 81/2 × 81 = 2430/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
21/81 = 21 × 2/81 × 2 = 42/162 - Add the two like fractions:
2430/162 + 42/162 = 2430 + 42/162 = 2472/162 - 2472/162 simplified gives 412/27
- So, 30/2 + 21/81 = 412/27
In mixed form: 157/27
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