Add 30/35 and 3/18
30/35 + 3/18 is 43/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
30/35 = 30 × 18/35 × 18 = 540/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
3/18 = 3 × 35/18 × 35 = 105/630 - Add the two like fractions:
540/630 + 105/630 = 540 + 105/630 = 645/630 - 645/630 simplified gives 43/42
- So, 30/35 + 3/18 = 43/42
In mixed form: 11/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/35+3/18 30/35+6/18 30/70+3/18 30/35+3/36 90/35+3/18 30/35+9/18 30/35+3/54 30/35+15/18 30/35+3/90 30/35+21/18