Add 18/4 and 20/40
1st number: 4 2/4, 2nd number: 20/40
18/4 + 20/40 is 5/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 4 × 10 = 40,
18/4 = 18 × 10/4 × 10 = 180/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
20/40 = 20 × 1/40 × 1 = 20/40 - Add the two like fractions:
180/40 + 20/40 = 180 + 20/40 = 200/40 - 200/40 simplified gives 5/1
- So, 18/4 + 20/40 = 5/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/4+20/40 18/8+20/40 18/4+20/80 54/4+20/40 18/4+60/40 18/12+20/40 90/4+20/40 18/20+20/40 18/28+20/40