Add 18/27 and 30/21
1st number: 18/27, 2nd number: 1 9/21
18/27 + 30/21 is 44/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 21 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
18/27 = 18 × 7/27 × 7 = 126/189 - Likewise, for the 2nd fraction, since 21 × 9 = 189,
30/21 = 30 × 9/21 × 9 = 270/189 - Add the two like fractions:
126/189 + 270/189 = 126 + 270/189 = 396/189 - 396/189 simplified gives 44/21
- So, 18/27 + 30/21 = 44/21
In mixed form: 22/21
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