Add 72/18 and 30/50
1st number: 4 0/18, 2nd number: 30/50
72/18 + 30/50 is 23/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 18 × 25 = 450,
72/18 = 72 × 25/18 × 25 = 1800/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
30/50 = 30 × 9/50 × 9 = 270/450 - Add the two like fractions:
1800/450 + 270/450 = 1800 + 270/450 = 2070/450 - 2070/450 simplified gives 23/5
- So, 72/18 + 30/50 = 23/5
In mixed form: 43/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/18+60/50 72/36+30/50 72/18+90/50 72/54+30/50 72/90+30/50