Add 81/45 and 6/18
1st number: 1 36/45, 2nd number: 6/18
81/45 + 6/18 is 32/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
81/45 = 81 × 2/45 × 2 = 162/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
6/18 = 6 × 5/18 × 5 = 30/90 - Add the two like fractions:
162/90 + 30/90 = 162 + 30/90 = 192/90 - 192/90 simplified gives 32/15
- So, 81/45 + 6/18 = 32/15
In mixed form: 22/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/45+12/18 81/90+6/18 81/45+6/36 81/45+6/54 81/45+30/18 81/45+6/90 81/45+42/18