Add 72/18 and 14/5
1st number: 4 0/18, 2nd number: 2 4/5
72/18 + 14/5 is 34/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
72/18 = 72 × 5/18 × 5 = 360/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
14/5 = 14 × 18/5 × 18 = 252/90 - Add the two like fractions:
360/90 + 252/90 = 360 + 252/90 = 612/90 - 612/90 simplified gives 34/5
- So, 72/18 + 14/5 = 34/5
In mixed form: 64/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/18+28/5 72/36+14/5 72/18+14/10 72/18+42/5 72/54+14/5 72/18+14/15 72/18+70/5 72/90+14/5 72/18+14/25 72/18+98/5 72/18+14/35