Add 18/4 and 4/5
1st number: 4 2/4, 2nd number: 4/5
18/4 + 4/5 is 53/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
18/4 = 18 × 5/4 × 5 = 90/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
4/5 = 4 × 4/5 × 4 = 16/20 - Add the two like fractions:
90/20 + 16/20 = 90 + 16/20 = 106/20 - 106/20 simplified gives 53/10
- So, 18/4 + 4/5 = 53/10
In mixed form: 53/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/4+4/5 18/4+8/5 18/8+4/5 18/4+4/10 54/4+4/5 18/4+12/5 18/12+4/5 18/4+4/15 90/4+4/5 18/4+20/5 18/20+4/5 18/4+4/25 18/4+28/5 18/28+4/5 18/4+4/35