Add 80/60 and 8/18
1st number: 1 20/60, 2nd number: 8/18
80/60 + 8/18 is 16/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
80/60 = 80 × 3/60 × 3 = 240/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
8/18 = 8 × 10/18 × 10 = 80/180 - Add the two like fractions:
240/180 + 80/180 = 240 + 80/180 = 320/180 - 320/180 simplified gives 16/9
- So, 80/60 + 8/18 = 16/9
In mixed form: 17/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/60+16/18 80/60+8/36 80/60+24/18 80/60+8/54 80/60+40/18 80/60+8/90 80/60+56/18