Add 40/81 and 90/50
1st number: 40/81, 2nd number: 1 40/50
40/81 + 90/50 is 929/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 50 is 4050
Next, find the equivalent fraction of both fractional numbers with denominator 4050 - For the 1st fraction, since 81 × 50 = 4050,
40/81 = 40 × 50/81 × 50 = 2000/4050 - Likewise, for the 2nd fraction, since 50 × 81 = 4050,
90/50 = 90 × 81/50 × 81 = 7290/4050 - Add the two like fractions:
2000/4050 + 7290/4050 = 2000 + 7290/4050 = 9290/4050 - 9290/4050 simplified gives 929/405
- So, 40/81 + 90/50 = 929/405
In mixed form: 2119/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/81+90/50