Add 9/18 and 8/7
1st number: 9/18, 2nd number: 1 1/7
9/18 + 8/7 is 23/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 7 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 7 × 18 = 126,
8/7 = 8 × 18/7 × 18 = 144/126 - Add the two like fractions:
63/126 + 144/126 = 63 + 144/126 = 207/126 - 207/126 simplified gives 23/14
- So, 9/18 + 8/7 = 23/14
In mixed form: 19/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/18+16/7 9/36+8/7 9/18+8/14 27/18+8/7 9/18+24/7 9/54+8/7 9/18+8/21 45/18+8/7 9/18+40/7 9/90+8/7 9/18+8/35 63/18+8/7 9/18+56/7 9/18+8/49