Add 32/45 and 81/90
32/45 + 81/90 is 29/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
32/45 = 32 × 2/45 × 2 = 64/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
81/90 = 81 × 1/90 × 1 = 81/90 - Add the two like fractions:
64/90 + 81/90 = 64 + 81/90 = 145/90 - 145/90 simplified gives 29/18
- So, 32/45 + 81/90 = 29/18
In mixed form: 111/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/45+81/90 32/90+81/90 96/45+81/90