Add 18/8 and 18/80
1st number: 2 2/8, 2nd number: 18/80
18/8 + 18/80 is 99/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 8 × 10 = 80,
18/8 = 18 × 10/8 × 10 = 180/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
18/80 = 18 × 1/80 × 1 = 18/80 - Add the two like fractions:
180/80 + 18/80 = 180 + 18/80 = 198/80 - 198/80 simplified gives 99/40
- So, 18/8 + 18/80 = 99/40
In mixed form: 219/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/8+18/80 18/8+36/80 18/16+18/80 54/8+18/80 18/8+54/80 18/24+18/80 90/8+18/80 18/8+90/80 18/40+18/80 18/56+18/80