Add 80/63 and 28/27
1st number: 1 17/63, 2nd number: 1 1/27
80/63 + 28/27 is 436/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 63 × 3 = 189,
80/63 = 80 × 3/63 × 3 = 240/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
28/27 = 28 × 7/27 × 7 = 196/189 - Add the two like fractions:
240/189 + 196/189 = 240 + 196/189 = 436/189 - So, 80/63 + 28/27 = 436/189
In mixed form: 258/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/63+56/27 80/63+28/54 80/63+84/27 80/63+28/81