Add 30/20 and 15/72
1st number: 1 10/20, 2nd number: 15/72
30/20 + 15/72 is 41/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 20 × 18 = 360,
30/20 = 30 × 18/20 × 18 = 540/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
15/72 = 15 × 5/72 × 5 = 75/360 - Add the two like fractions:
540/360 + 75/360 = 540 + 75/360 = 615/360 - 615/360 simplified gives 41/24
- So, 30/20 + 15/72 = 41/24
In mixed form: 117/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20+15/72 30/20+30/72 30/40+15/72 90/20+15/72 30/20+45/72 30/60+15/72 30/20+75/72