Add 42/9 and 80/20
1st number: 4 6/9, 2nd number: 4 0/20
42/9 + 80/20 is 26/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
42/9 = 42 × 20/9 × 20 = 840/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
80/20 = 80 × 9/20 × 9 = 720/180 - Add the two like fractions:
840/180 + 720/180 = 840 + 720/180 = 1560/180 - 1560/180 simplified gives 26/3
- So, 42/9 + 80/20 = 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: 84/9+80/20 42/18+80/20 42/9+80/40 42/27+80/20 42/9+80/60 42/45+80/20 42/63+80/20