Add 63/18 and 9/80
1st number: 3 9/18, 2nd number: 9/80
63/18 + 9/80 is 289/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
63/18 = 63 × 40/18 × 40 = 2520/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
9/80 = 9 × 9/80 × 9 = 81/720 - Add the two like fractions:
2520/720 + 81/720 = 2520 + 81/720 = 2601/720 - 2601/720 simplified gives 289/80
- So, 63/18 + 9/80 = 289/80
In mixed form: 349/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/18+18/80 63/36+9/80 63/18+27/80 63/54+9/80 63/18+45/80 63/90+9/80 63/18+63/80