Add 80/63 and 4/9
1st number: 1 17/63, 2nd number: 4/9
80/63 + 4/9 is 12/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
80/63 = 80 × 1/63 × 1 = 80/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
4/9 = 4 × 7/9 × 7 = 28/63 - Add the two like fractions:
80/63 + 28/63 = 80 + 28/63 = 108/63 - 108/63 simplified gives 12/7
- So, 80/63 + 4/9 = 12/7
In mixed form: 15/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/63+8/9 80/63+4/18 80/63+12/9 80/63+4/27 80/63+20/9 80/63+4/45 80/63+28/9 80/63+4/63