Add 70/81 and 5/50
70/81 + 5/50 is 781/810.
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,
70/81 = 70 × 50/81 × 50 = 3500/4050 - Likewise, for the 2nd fraction, since 50 × 81 = 4050,
5/50 = 5 × 81/50 × 81 = 405/4050 - Add the two like fractions:
3500/4050 + 405/4050 = 3500 + 405/4050 = 3905/4050 - 3905/4050 simplified gives 781/810
- So, 70/81 + 5/50 = 781/810
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/81+10/50 70/81+15/50 70/81+25/50 70/81+35/50