Add 9/15 and 56/80
9/15 + 56/80 is 13/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 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 80 × 3 = 240,
56/80 = 56 × 3/80 × 3 = 168/240 - Add the two like fractions:
144/240 + 168/240 = 144 + 168/240 = 312/240 - 312/240 simplified gives 13/10
- So, 9/15 + 56/80 = 13/10
In mixed form: 13/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15+56/80 9/30+56/80 27/15+56/80 9/45+56/80 45/15+56/80 9/75+56/80 63/15+56/80