Add 56/40 and 20/18
1st number: 1 16/40, 2nd number: 1 2/18
56/40 + 20/18 is 113/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 18 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
56/40 = 56 × 9/40 × 9 = 504/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
20/18 = 20 × 20/18 × 20 = 400/360 - Add the two like fractions:
504/360 + 400/360 = 504 + 400/360 = 904/360 - 904/360 simplified gives 113/45
- So, 56/40 + 20/18 = 113/45
In mixed form: 223/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/40+40/18 56/80+20/18 56/40+20/36 56/40+60/18 56/40+20/54 56/40+20/90