Add 72/5 and 64/18
1st number: 14 2/5, 2nd number: 3 10/18
72/5 + 64/18 is 808/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
72/5 = 72 × 18/5 × 18 = 1296/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
64/18 = 64 × 5/18 × 5 = 320/90 - Add the two like fractions:
1296/90 + 320/90 = 1296 + 320/90 = 1616/90 - 1616/90 simplified gives 808/45
- So, 72/5 + 64/18 = 808/45
In mixed form: 1743/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/10+64/18 72/5+64/36 72/15+64/18 72/5+64/54 72/25+64/18 72/5+64/90 72/35+64/18