Add 30/90 and 6/4
1st number: 30/90, 2nd number: 1 2/4
30/90 + 6/4 is 11/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
30/90 = 30 × 2/90 × 2 = 60/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
6/4 = 6 × 45/4 × 45 = 270/180 - Add the two like fractions:
60/180 + 270/180 = 60 + 270/180 = 330/180 - 330/180 simplified gives 11/6
- So, 30/90 + 6/4 = 11/6
In mixed form: 15/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/90+6/4 30/90+12/4 30/90+6/8 30/90+18/4 30/90+6/12 30/90+30/4 30/90+6/20 30/90+42/4 30/90+6/28