Add 9/15 and 20/4
1st number: 9/15, 2nd number: 5 0/4
9/15 + 20/4 is 28/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
9/15 = 9 × 4/15 × 4 = 36/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
20/4 = 20 × 15/4 × 15 = 300/60 - Add the two like fractions:
36/60 + 300/60 = 36 + 300/60 = 336/60 - 336/60 simplified gives 28/5
- So, 9/15 + 20/4 = 28/5
In mixed form: 53/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15+20/4 9/15+40/4 9/30+20/4 9/15+20/8 27/15+20/4 9/15+60/4 9/45+20/4 9/15+20/12 45/15+20/4 9/75+20/4 63/15+20/4 9/15+20/28