Add 5/20 and 70/18
1st number: 5/20, 2nd number: 3 16/18
5/20 + 70/18 is 149/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
5/20 = 5 × 9/20 × 9 = 45/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
70/18 = 70 × 10/18 × 10 = 700/180 - Add the two like fractions:
45/180 + 700/180 = 45 + 700/180 = 745/180 - 745/180 simplified gives 149/36
- So, 5/20 + 70/18 = 149/36
In mixed form: 45/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20+70/18 5/40+70/18 5/20+70/36 15/20+70/18 5/60+70/18 5/20+70/54 25/20+70/18 5/20+70/90 35/20+70/18