Add 15/27 and 21/7
1st number: 15/27, 2nd number: 3 0/7
15/27 + 21/7 is 32/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 7 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 7 × 27 = 189,
21/7 = 21 × 27/7 × 27 = 567/189 - Add the two like fractions:
105/189 + 567/189 = 105 + 567/189 = 672/189 - 672/189 simplified gives 32/9
- So, 15/27 + 21/7 = 32/9
In mixed form: 35/9
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