Add 15/4 and 5/90
1st number: 3 3/4, 2nd number: 5/90
15/4 + 5/90 is 137/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
15/4 = 15 × 45/4 × 45 = 675/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
5/90 = 5 × 2/90 × 2 = 10/180 - Add the two like fractions:
675/180 + 10/180 = 675 + 10/180 = 685/180 - 685/180 simplified gives 137/36
- So, 15/4 + 5/90 = 137/36
In mixed form: 329/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4+5/90 15/4+10/90 15/8+5/90 45/4+5/90 15/4+15/90 15/12+5/90 75/4+5/90 15/4+25/90 15/20+5/90 15/4+35/90 15/28+5/90