Add 20/8 and 49/9
1st number: 2 4/8, 2nd number: 5 4/9
20/8 + 49/9 is 143/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
20/8 = 20 × 9/8 × 9 = 180/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
49/9 = 49 × 8/9 × 8 = 392/72 - Add the two like fractions:
180/72 + 392/72 = 180 + 392/72 = 572/72 - 572/72 simplified gives 143/18
- So, 20/8 + 49/9 = 143/18
In mixed form: 717/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/8+49/9 20/8+98/9 20/16+49/9 20/8+49/18 60/8+49/9 20/24+49/9 20/8+49/27 20/40+49/9 20/8+49/45 20/56+49/9 20/8+49/63