Add 45/6 and 81/20
1st number: 7 3/6, 2nd number: 4 1/20
45/6 + 81/20 is 231/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 6 × 10 = 60,
45/6 = 45 × 10/6 × 10 = 450/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
81/20 = 81 × 3/20 × 3 = 243/60 - Add the two like fractions:
450/60 + 243/60 = 450 + 243/60 = 693/60 - 693/60 simplified gives 231/20
- So, 45/6 + 81/20 = 231/20
In mixed form: 1111/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/6+81/20 45/12+81/20 45/6+81/40 45/18+81/20 45/6+81/60 45/30+81/20 45/42+81/20