Add 18/72 and 56/5
1st number: 18/72, 2nd number: 11 1/5
18/72 + 56/5 is 229/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 5 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
18/72 = 18 × 5/72 × 5 = 90/360 - Likewise, for the 2nd fraction, since 5 × 72 = 360,
56/5 = 56 × 72/5 × 72 = 4032/360 - Add the two like fractions:
90/360 + 4032/360 = 90 + 4032/360 = 4122/360 - 4122/360 simplified gives 229/20
- So, 18/72 + 56/5 = 229/20
In mixed form: 119/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/72+56/5 18/72+56/10 54/72+56/5 18/72+56/15 90/72+56/5 18/72+56/25 18/72+56/35