Add 30/9 and 15/70
1st number: 3 3/9, 2nd number: 15/70
30/9 + 15/70 is 149/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 9 × 70 = 630,
30/9 = 30 × 70/9 × 70 = 2100/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
15/70 = 15 × 9/70 × 9 = 135/630 - Add the two like fractions:
2100/630 + 135/630 = 2100 + 135/630 = 2235/630 - 2235/630 simplified gives 149/42
- So, 30/9 + 15/70 = 149/42
In mixed form: 323/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9+15/70 30/9+30/70 30/18+15/70 90/9+15/70 30/9+45/70 30/27+15/70 30/9+75/70 30/45+15/70 30/63+15/70