Add 12/5 and 30/90
1st number: 2 2/5, 2nd number: 30/90
12/5 + 30/90 is 41/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
12/5 = 12 × 18/5 × 18 = 216/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
30/90 = 30 × 1/90 × 1 = 30/90 - Add the two like fractions:
216/90 + 30/90 = 216 + 30/90 = 246/90 - 246/90 simplified gives 41/15
- So, 12/5 + 30/90 = 41/15
In mixed form: 211/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/5+30/90 12/5+60/90 12/10+30/90 36/5+30/90 12/15+30/90 60/5+30/90 12/25+30/90 84/5+30/90 12/35+30/90