Add 81/18 and 35/7
1st number: 4 9/18, 2nd number: 5 0/7
81/18 + 35/7 is 19/2.
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,
81/18 = 81 × 7/18 × 7 = 567/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
35/7 = 35 × 18/7 × 18 = 630/126 - Add the two like fractions:
567/126 + 630/126 = 567 + 630/126 = 1197/126 - 1197/126 simplified gives 19/2
- So, 81/18 + 35/7 = 19/2
In mixed form: 91/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/18+70/7 81/36+35/7 81/18+35/14 81/54+35/7 81/18+35/21 81/90+35/7 81/18+35/49