Add 70/20 and 1/9
1st number: 3 10/20, 2nd number: 1/9
70/20 + 1/9 is 65/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
70/20 = 70 × 9/20 × 9 = 630/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
1/9 = 1 × 20/9 × 20 = 20/180 - Add the two like fractions:
630/180 + 20/180 = 630 + 20/180 = 650/180 - 650/180 simplified gives 65/18
- So, 70/20 + 1/9 = 65/18
In mixed form: 311/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20+2/9 70/40+1/9 70/20+1/18 70/20+3/9 70/60+1/9 70/20+1/27 70/20+5/9 70/20+1/45 70/20+7/9 70/20+1/63