Add 15/27 and 24/21
1st number: 15/27, 2nd number: 1 3/21
15/27 + 24/21 is 107/63.
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,
15/27 = 15 × 7/27 × 7 = 105/189 - Likewise, for the 2nd fraction, since 21 × 9 = 189,
24/21 = 24 × 9/21 × 9 = 216/189 - Add the two like fractions:
105/189 + 216/189 = 105 + 216/189 = 321/189 - 321/189 simplified gives 107/63
- So, 15/27 + 24/21 = 107/63
In mixed form: 144/63
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