Add 80/21 and 3/27
1st number: 3 17/21, 2nd number: 3/27
80/21 + 3/27 is 247/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 21 × 9 = 189,
80/21 = 80 × 9/21 × 9 = 720/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
3/27 = 3 × 7/27 × 7 = 21/189 - Add the two like fractions:
720/189 + 21/189 = 720 + 21/189 = 741/189 - 741/189 simplified gives 247/63
- So, 80/21 + 3/27 = 247/63
In mixed form: 358/63
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