Add 9/4 and 25/15
1st number: 2 1/4, 2nd number: 1 10/15
9/4 + 25/15 is 47/12.
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,
25/15 = 25 × 4/15 × 4 = 100/60 - Add the two like fractions:
135/60 + 100/60 = 135 + 100/60 = 235/60 - 235/60 simplified gives 47/12
- So, 9/4 + 25/15 = 47/12
In mixed form: 311/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/4+25/15 9/4+50/15 9/8+25/15 9/4+25/30 27/4+25/15 9/4+75/15 9/12+25/15 9/4+25/45 45/4+25/15 9/20+25/15 9/4+25/75 63/4+25/15 9/28+25/15