Add 56/20 and 70/18
1st number: 2 16/20, 2nd number: 3 16/18
56/20 + 70/18 is 301/45.
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,
56/20 = 56 × 9/20 × 9 = 504/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
70/18 = 70 × 10/18 × 10 = 700/180 - Add the two like fractions:
504/180 + 700/180 = 504 + 700/180 = 1204/180 - 1204/180 simplified gives 301/45
- So, 56/20 + 70/18 = 301/45
In mixed form: 631/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/40+70/18 56/20+70/36 56/60+70/18 56/20+70/54 56/20+70/90