Add 72/12 and 9/30
1st number: 6 0/12, 2nd number: 9/30
72/12 + 9/30 is 63/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
72/12 = 72 × 5/12 × 5 = 360/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
9/30 = 9 × 2/30 × 2 = 18/60 - Add the two like fractions:
360/60 + 18/60 = 360 + 18/60 = 378/60 - 378/60 simplified gives 63/10
- So, 72/12 + 9/30 = 63/10
In mixed form: 63/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/12+18/30 72/24+9/30 72/12+9/60 72/12+27/30 72/36+9/30 72/12+9/90 72/12+45/30 72/60+9/30 72/12+63/30 72/84+9/30