Add 18/72 and 36/5
1st number: 18/72, 2nd number: 7 1/5
18/72 + 36/5 is 149/20.
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,
36/5 = 36 × 72/5 × 72 = 2592/360 - Add the two like fractions:
90/360 + 2592/360 = 90 + 2592/360 = 2682/360 - 2682/360 simplified gives 149/20
- So, 18/72 + 36/5 = 149/20
In mixed form: 79/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/72+36/5 18/72+72/5 18/72+36/10 54/72+36/5 18/72+36/15 90/72+36/5 18/72+36/25 18/72+36/35