Add 1/20 and 18/30
1/20 + 18/30 is 13/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
1/20 = 1 × 3/20 × 3 = 3/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
18/30 = 18 × 2/30 × 2 = 36/60 - Add the two like fractions:
3/60 + 36/60 = 3 + 36/60 = 39/60 - 39/60 simplified gives 13/20
- So, 1/20 + 18/30 = 13/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20+18/30 1/20+36/30 1/40+18/30 1/20+18/60 3/20+18/30 1/20+54/30 1/60+18/30 1/20+18/90 5/20+18/30 1/20+90/30 7/20+18/30