Add 28/9 and 80/63
1st number: 3 1/9, 2nd number: 1 17/63
28/9 + 80/63 is 92/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
28/9 = 28 × 7/9 × 7 = 196/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
80/63 = 80 × 1/63 × 1 = 80/63 - Add the two like fractions:
196/63 + 80/63 = 196 + 80/63 = 276/63 - 276/63 simplified gives 92/21
- So, 28/9 + 80/63 = 92/21
In mixed form: 48/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/9+80/63 28/18+80/63 84/9+80/63 28/27+80/63 28/45+80/63 28/63+80/63