Add 14/20 and 30/90
14/20 + 30/90 is 31/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
14/20 = 14 × 9/20 × 9 = 126/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
30/90 = 30 × 2/90 × 2 = 60/180 - Add the two like fractions:
126/180 + 60/180 = 126 + 60/180 = 186/180 - 186/180 simplified gives 31/30
- So, 14/20 + 30/90 = 31/30
In mixed form: 11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/20+30/90 14/20+60/90 14/40+30/90 42/20+30/90 14/60+30/90 70/20+30/90 98/20+30/90