Add 70/5 and 28/18
1st number: 14 0/5, 2nd number: 1 10/18
70/5 + 28/18 is 140/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
70/5 = 70 × 18/5 × 18 = 1260/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
28/18 = 28 × 5/18 × 5 = 140/90 - Add the two like fractions:
1260/90 + 140/90 = 1260 + 140/90 = 1400/90 - 1400/90 simplified gives 140/9
- So, 70/5 + 28/18 = 140/9
In mixed form: 155/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/5+56/18 70/10+28/18 70/5+28/36 70/5+84/18 70/15+28/18 70/5+28/54 70/25+28/18 70/5+28/90 70/35+28/18