Add 81/90 and 5/50
81/90 + 5/50 is 1/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
81/90 = 81 × 5/90 × 5 = 405/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
5/50 = 5 × 9/50 × 9 = 45/450 - Add the two like fractions:
405/450 + 45/450 = 405 + 45/450 = 450/450 - 450/450 simplified gives 1/1
- So, 81/90 + 5/50 = 1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/90+10/50 81/90+15/50 81/90+25/50 81/90+35/50