Add 90/50 and 35/81
1st number: 1 40/50, 2nd number: 35/81
90/50 + 35/81 is 904/405.
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,
90/50 = 90 × 81/50 × 81 = 7290/4050 - Likewise, for the 2nd fraction, since 81 × 50 = 4050,
35/81 = 35 × 50/81 × 50 = 1750/4050 - Add the two like fractions:
7290/4050 + 1750/4050 = 7290 + 1750/4050 = 9040/4050 - 9040/4050 simplified gives 904/405
- So, 90/50 + 35/81 = 904/405
In mixed form: 294/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/50+70/81