Add 20/45 and 16/4
1st number: 20/45, 2nd number: 4 0/4
20/45 + 16/4 is 40/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
20/45 = 20 × 4/45 × 4 = 80/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
16/4 = 16 × 45/4 × 45 = 720/180 - Add the two like fractions:
80/180 + 720/180 = 80 + 720/180 = 800/180 - 800/180 simplified gives 40/9
- So, 20/45 + 16/4 = 40/9
In mixed form: 44/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/45+16/4 20/45+32/4 20/90+16/4 20/45+16/8 60/45+16/4 20/45+48/4 20/45+16/12 20/45+80/4 20/45+16/20 20/45+16/28