Add 18/6 and 20/80
1st number: 3 0/6, 2nd number: 20/80
18/6 + 20/80 is 13/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 6 × 40 = 240,
18/6 = 18 × 40/6 × 40 = 720/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
20/80 = 20 × 3/80 × 3 = 60/240 - Add the two like fractions:
720/240 + 60/240 = 720 + 60/240 = 780/240 - 780/240 simplified gives 13/4
- So, 18/6 + 20/80 = 13/4
In mixed form: 31/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/6+20/80 18/6+40/80 18/12+20/80 54/6+20/80 18/6+60/80 90/6+20/80 18/30+20/80 18/42+20/80