Add 20/5 and 42/9
1st number: 4 0/5, 2nd number: 4 6/9
20/5 + 42/9 is 26/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
20/5 = 20 × 9/5 × 9 = 180/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
42/9 = 42 × 5/9 × 5 = 210/45 - Add the two like fractions:
180/45 + 210/45 = 180 + 210/45 = 390/45 - 390/45 simplified gives 26/3
- So, 20/5 + 42/9 = 26/3
In mixed form: 82/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/5+42/9 20/5+84/9 20/10+42/9 20/5+42/18 60/5+42/9 20/15+42/9 20/5+42/27 20/25+42/9 20/5+42/45 20/35+42/9 20/5+42/63