Add 20/9 and 70/8
1st number: 2 2/9, 2nd number: 8 6/8
20/9 + 70/8 is 395/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
20/9 = 20 × 8/9 × 8 = 160/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
70/8 = 70 × 9/8 × 9 = 630/72 - Add the two like fractions:
160/72 + 630/72 = 160 + 630/72 = 790/72 - 790/72 simplified gives 395/36
- So, 20/9 + 70/8 = 395/36
In mixed form: 1035/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/9+70/8 20/18+70/8 20/9+70/16 60/9+70/8 20/27+70/8 20/9+70/24 20/45+70/8 20/9+70/40 20/63+70/8 20/9+70/56