Add 9/15 and 25/16
1st number: 9/15, 2nd number: 1 9/16
9/15 + 25/16 is 173/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
9/15 = 9 × 16/15 × 16 = 144/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
25/16 = 25 × 15/16 × 15 = 375/240 - Add the two like fractions:
144/240 + 375/240 = 144 + 375/240 = 519/240 - 519/240 simplified gives 173/80
- So, 9/15 + 25/16 = 173/80
In mixed form: 213/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15+25/16 9/15+50/16 9/30+25/16 9/15+25/32 27/15+25/16 9/15+75/16 9/45+25/16 9/15+25/48 45/15+25/16 9/75+25/16 9/15+25/80 63/15+25/16