Add 5/27 and 80/21
1st number: 5/27, 2nd number: 3 17/21
5/27 + 80/21 is 755/189.
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,
5/27 = 5 × 7/27 × 7 = 35/189 - Likewise, for the 2nd fraction, since 21 × 9 = 189,
80/21 = 80 × 9/21 × 9 = 720/189 - Add the two like fractions:
35/189 + 720/189 = 35 + 720/189 = 755/189 - So, 5/27 + 80/21 = 755/189
In mixed form: 3188/189
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