Add 70/18 and 28/9
1st number: 3 16/18, 2nd number: 3 1/9
70/18 + 28/9 is 7/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
70/18 = 70 × 1/18 × 1 = 70/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
28/9 = 28 × 2/9 × 2 = 56/18 - Add the two like fractions:
70/18 + 56/18 = 70 + 56/18 = 126/18 - 126/18 simplified gives 7/1
- So, 70/18 + 28/9 = 7/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18+56/9 70/36+28/9 70/18+28/18 70/18+84/9 70/54+28/9 70/18+28/27 70/90+28/9 70/18+28/45 70/18+28/63