Add 9/18 and 28/63
9/18 + 28/63 is 17/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
9/18 = 9 × 7/18 × 7 = 63/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
28/63 = 28 × 2/63 × 2 = 56/126 - Add the two like fractions:
63/126 + 56/126 = 63 + 56/126 = 119/126 - 119/126 simplified gives 17/18
- So, 9/18 + 28/63 = 17/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/18+56/63 9/36+28/63 27/18+28/63 9/18+84/63 9/54+28/63 45/18+28/63 9/90+28/63 63/18+28/63