Add 30/5 and 90/18
1st number: 6 0/5, 2nd number: 5 0/18
30/5 + 90/18 is 11/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
30/5 = 30 × 18/5 × 18 = 540/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
90/18 = 90 × 5/18 × 5 = 450/90 - Add the two like fractions:
540/90 + 450/90 = 540 + 450/90 = 990/90 - 990/90 simplified gives 11/1
- So, 30/5 + 90/18 = 11/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/5+90/18 30/10+90/18 30/5+90/36 90/5+90/18 30/15+90/18 30/5+90/54 30/25+90/18 30/35+90/18