Add 20/45 and 5/9
20/45 + 5/9 is 1/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
20/45 = 20 × 1/45 × 1 = 20/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
5/9 = 5 × 5/9 × 5 = 25/45 - Add the two like fractions:
20/45 + 25/45 = 20 + 25/45 = 45/45 - 45/45 simplified gives 1/1
- So, 20/45 + 5/9 = 1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/45+5/9 20/45+10/9 20/90+5/9 20/45+5/18 60/45+5/9 20/45+15/9 20/45+5/27 20/45+25/9 20/45+5/45 20/45+35/9 20/45+5/63