Add 9/15 and 84/80
1st number: 9/15, 2nd number: 1 4/80
9/15 + 84/80 is 33/20.
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,
84/80 = 84 × 3/80 × 3 = 252/240 - Add the two like fractions:
144/240 + 252/240 = 144 + 252/240 = 396/240 - 396/240 simplified gives 33/20
- So, 9/15 + 84/80 = 33/20
In mixed form: 113/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15+84/80 9/30+84/80 27/15+84/80 9/45+84/80 45/15+84/80 9/75+84/80 63/15+84/80