Add 8/5 and 30/90
1st number: 1 3/5, 2nd number: 30/90
8/5 + 30/90 is 29/15.
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,
8/5 = 8 × 18/5 × 18 = 144/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
30/90 = 30 × 1/90 × 1 = 30/90 - Add the two like fractions:
144/90 + 30/90 = 144 + 30/90 = 174/90 - 174/90 simplified gives 29/15
- So, 8/5 + 30/90 = 29/15
In mixed form: 114/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/5+30/90 8/5+60/90 8/10+30/90 24/5+30/90 8/15+30/90 40/5+30/90 8/25+30/90 56/5+30/90 8/35+30/90