Add 40/20 and 18/4
1st number: 2 0/20, 2nd number: 4 2/4
40/20 + 18/4 is 13/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
40/20 = 40 × 1/20 × 1 = 40/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
18/4 = 18 × 5/4 × 5 = 90/20 - Add the two like fractions:
40/20 + 90/20 = 40 + 90/20 = 130/20 - 130/20 simplified gives 13/2
- So, 40/20 + 18/4 = 13/2
In mixed form: 61/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20+18/4 40/20+36/4 40/20+18/8 40/20+54/4 40/60+18/4 40/20+18/12 40/20+90/4 40/20+18/20 40/20+18/28