Add 45/50 and 90/81
1st number: 45/50, 2nd number: 1 9/81
45/50 + 90/81 is 181/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 81 is 4050
Next, find the equivalent fraction of both fractional numbers with denominator 4050 - For the 1st fraction, since 50 × 81 = 4050,
45/50 = 45 × 81/50 × 81 = 3645/4050 - Likewise, for the 2nd fraction, since 81 × 50 = 4050,
90/81 = 90 × 50/81 × 50 = 4500/4050 - Add the two like fractions:
3645/4050 + 4500/4050 = 3645 + 4500/4050 = 8145/4050 - 8145/4050 simplified gives 181/90
- So, 45/50 + 90/81 = 181/90
In mixed form: 21/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/50+90/81