Add 90/15 and 9/4
1st number: 6 0/15, 2nd number: 2 1/4
90/15 + 9/4 is 33/4.
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,
90/15 = 90 × 4/15 × 4 = 360/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
9/4 = 9 × 15/4 × 15 = 135/60 - Add the two like fractions:
360/60 + 135/60 = 360 + 135/60 = 495/60 - 495/60 simplified gives 33/4
- So, 90/15 + 9/4 = 33/4
In mixed form: 81/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15+18/4 90/30+9/4 90/15+9/8 90/15+27/4 90/45+9/4 90/15+9/12 90/15+45/4 90/75+9/4 90/15+9/20 90/15+63/4 90/15+9/28