Add 9/15 and 8/10
9/15 + 8/10 is 7/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
9/15 = 9 × 2/15 × 2 = 18/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
8/10 = 8 × 3/10 × 3 = 24/30 - Add the two like fractions:
18/30 + 24/30 = 18 + 24/30 = 42/30 - 42/30 simplified gives 7/5
- So, 9/15 + 8/10 = 7/5
In mixed form: 12/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15+8/10 9/15+16/10 9/30+8/10 9/15+8/20 27/15+8/10 9/15+24/10 9/45+8/10 9/15+8/30 45/15+8/10 9/15+40/10 9/75+8/10 9/15+8/50 63/15+8/10 9/15+56/10 9/15+8/70