Add 70/9 and 30/70
1st number: 7 7/9, 2nd number: 30/70
70/9 + 30/70 is 517/63.
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,
70/9 = 70 × 70/9 × 70 = 4900/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
30/70 = 30 × 9/70 × 9 = 270/630 - Add the two like fractions:
4900/630 + 270/630 = 4900 + 270/630 = 5170/630 - 5170/630 simplified gives 517/63
- So, 70/9 + 30/70 = 517/63
In mixed form: 813/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/9+60/70 70/18+30/70 70/9+90/70 70/27+30/70 70/45+30/70 70/63+30/70