Add 18/20 and 27/3
1st number: 18/20, 2nd number: 9 0/3
18/20 + 27/3 is 99/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 3 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
18/20 = 18 × 3/20 × 3 = 54/60 - Likewise, for the 2nd fraction, since 3 × 20 = 60,
27/3 = 27 × 20/3 × 20 = 540/60 - Add the two like fractions:
54/60 + 540/60 = 54 + 540/60 = 594/60 - 594/60 simplified gives 99/10
- So, 18/20 + 27/3 = 99/10
In mixed form: 99/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/20+27/3 18/20+54/3 18/40+27/3 18/20+27/6 54/20+27/3 18/20+81/3 18/60+27/3 18/20+27/9 90/20+27/3 18/20+27/15 18/20+27/21