Add 72/5 and 18/10
1st number: 14 2/5, 2nd number: 1 8/10
72/5 + 18/10 is 81/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 5 × 2 = 10,
72/5 = 72 × 2/5 × 2 = 144/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
18/10 = 18 × 1/10 × 1 = 18/10 - Add the two like fractions:
144/10 + 18/10 = 144 + 18/10 = 162/10 - 162/10 simplified gives 81/5
- So, 72/5 + 18/10 = 81/5
In mixed form: 161/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/5+36/10 72/10+18/10 72/5+18/20 72/5+54/10 72/15+18/10 72/5+18/30 72/5+90/10 72/25+18/10 72/5+18/50 72/35+18/10 72/5+18/70