Add 81/45 and 54/9
1st number: 1 36/45, 2nd number: 6 0/9
81/45 + 54/9 is 39/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
81/45 = 81 × 1/45 × 1 = 81/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
54/9 = 54 × 5/9 × 5 = 270/45 - Add the two like fractions:
81/45 + 270/45 = 81 + 270/45 = 351/45 - 351/45 simplified gives 39/5
- So, 81/45 + 54/9 = 39/5
In mixed form: 74/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/90+54/9 81/45+54/18 81/45+54/27 81/45+54/45 81/45+54/63