Add 15/80 and 63/9
1st number: 15/80, 2nd number: 7 0/9
15/80 + 63/9 is 115/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
15/80 = 15 × 9/80 × 9 = 135/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
63/9 = 63 × 80/9 × 80 = 5040/720 - Add the two like fractions:
135/720 + 5040/720 = 135 + 5040/720 = 5175/720 - 5175/720 simplified gives 115/16
- So, 15/80 + 63/9 = 115/16
In mixed form: 73/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/80+63/9 15/80+63/18 45/80+63/9 15/80+63/27 75/80+63/9 15/80+63/45