Add 80/4 and 63/9
1st number: 20 0/4, 2nd number: 7 0/9
80/4 + 63/9 is 27/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
80/4 = 80 × 9/4 × 9 = 720/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
63/9 = 63 × 4/9 × 4 = 252/36 - Add the two like fractions:
720/36 + 252/36 = 720 + 252/36 = 972/36 - 972/36 simplified gives 27/1
- So, 80/4 + 63/9 = 27/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+63/9 80/4+63/18 80/12+63/9 80/4+63/27 80/20+63/9 80/4+63/45 80/28+63/9