Add 35/15 and 30/18
1st number: 2 5/15, 2nd number: 1 12/18
35/15 + 30/18 is 4/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
35/15 = 35 × 6/15 × 6 = 210/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
30/18 = 30 × 5/18 × 5 = 150/90 - Add the two like fractions:
210/90 + 150/90 = 210 + 150/90 = 360/90 - 360/90 simplified gives 4/1
- So, 35/15 + 30/18 = 4/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/15+30/18 35/15+60/18 35/30+30/18 35/15+30/36 35/15+90/18 35/45+30/18 35/15+30/54 35/75+30/18 35/15+30/90