Add 18/20 and 24/15
1st number: 18/20, 2nd number: 1 9/15
18/20 + 24/15 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
18/20 = 18 × 3/20 × 3 = 54/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
24/15 = 24 × 4/15 × 4 = 96/60 - Add the two like fractions:
54/60 + 96/60 = 54 + 96/60 = 150/60 - 150/60 simplified gives 5/2
- So, 18/20 + 24/15 = 5/2
In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/20+24/15 18/20+48/15 18/40+24/15 18/20+24/30 54/20+24/15 18/20+72/15 18/60+24/15 18/20+24/45 90/20+24/15 18/20+24/75