Add 90/27 and 28/63
1st number: 3 9/27, 2nd number: 28/63
90/27 + 28/63 is 34/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 63 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
90/27 = 90 × 7/27 × 7 = 630/189 - Likewise, for the 2nd fraction, since 63 × 3 = 189,
28/63 = 28 × 3/63 × 3 = 84/189 - Add the two like fractions:
630/189 + 84/189 = 630 + 84/189 = 714/189 - 714/189 simplified gives 34/9
- So, 90/27 + 28/63 = 34/9
In mixed form: 37/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/27+56/63 90/54+28/63 90/27+84/63 90/81+28/63