Add 70/8 and 28/9
1st number: 8 6/8, 2nd number: 3 1/9
70/8 + 28/9 is 427/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
70/8 = 70 × 9/8 × 9 = 630/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
28/9 = 28 × 8/9 × 8 = 224/72 - Add the two like fractions:
630/72 + 224/72 = 630 + 224/72 = 854/72 - 854/72 simplified gives 427/36
- So, 70/8 + 28/9 = 427/36
In mixed form: 1131/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/8+56/9 70/16+28/9 70/8+28/18 70/8+84/9 70/24+28/9 70/8+28/27 70/40+28/9 70/8+28/45 70/56+28/9 70/8+28/63