Add 20/40 and 75/18
1st number: 20/40, 2nd number: 4 3/18
20/40 + 75/18 is 14/3.
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,
20/40 = 20 × 9/40 × 9 = 180/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
75/18 = 75 × 20/18 × 20 = 1500/360 - Add the two like fractions:
180/360 + 1500/360 = 180 + 1500/360 = 1680/360 - 1680/360 simplified gives 14/3
- So, 20/40 + 75/18 = 14/3
In mixed form: 42/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/80+75/18 20/40+75/36 60/40+75/18 20/40+75/54 20/40+75/90