Add 18/4 and 3/15
1st number: 4 2/4, 2nd number: 3/15
18/4 + 3/15 is 47/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
18/4 = 18 × 15/4 × 15 = 270/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
3/15 = 3 × 4/15 × 4 = 12/60 - Add the two like fractions:
270/60 + 12/60 = 270 + 12/60 = 282/60 - 282/60 simplified gives 47/10
- So, 18/4 + 3/15 = 47/10
In mixed form: 47/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/4+3/15 18/4+6/15 18/8+3/15 18/4+3/30 54/4+3/15 18/4+9/15 18/12+3/15 18/4+3/45 90/4+3/15 18/20+3/15 18/4+3/75 18/4+21/15 18/28+3/15