Add 30/35 and 63/18
1st number: 30/35, 2nd number: 3 9/18
30/35 + 63/18 is 61/14.
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,
63/18 = 63 × 35/18 × 35 = 2205/630 - Add the two like fractions:
540/630 + 2205/630 = 540 + 2205/630 = 2745/630 - 2745/630 simplified gives 61/14
- So, 30/35 + 63/18 = 61/14
In mixed form: 45/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/35+63/18 30/70+63/18 30/35+63/36 90/35+63/18 30/35+63/54 30/35+63/90