Add 9/4 and 90/15
1st number: 2 1/4, 2nd number: 6 0/15
9/4 + 90/15 is 33/4.
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,
9/4 = 9 × 15/4 × 15 = 135/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
90/15 = 90 × 4/15 × 4 = 360/60 - Add the two like fractions:
135/60 + 360/60 = 135 + 360/60 = 495/60 - 495/60 simplified gives 33/4
- So, 9/4 + 90/15 = 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: 18/4+90/15 9/8+90/15 9/4+90/30 27/4+90/15 9/12+90/15 9/4+90/45 45/4+90/15 9/20+90/15 9/4+90/75 63/4+90/15 9/28+90/15