Add 20/50 and 72/9
1st number: 20/50, 2nd number: 8 0/9
20/50 + 72/9 is 42/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 9 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
20/50 = 20 × 9/50 × 9 = 180/450 - Likewise, for the 2nd fraction, since 9 × 50 = 450,
72/9 = 72 × 50/9 × 50 = 3600/450 - Add the two like fractions:
180/450 + 3600/450 = 180 + 3600/450 = 3780/450 - 3780/450 simplified gives 42/5
- So, 20/50 + 72/9 = 42/5
In mixed form: 82/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/50+72/9 20/50+72/18 60/50+72/9 20/50+72/27 20/50+72/45 20/50+72/63