Add 30/5 and 72/12
1st number: 6 0/5, 2nd number: 6 0/12
30/5 + 72/12 is 12/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
30/5 = 30 × 12/5 × 12 = 360/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
72/12 = 72 × 5/12 × 5 = 360/60 - Add the two like fractions:
360/60 + 360/60 = 360 + 360/60 = 720/60 - 720/60 simplified gives 12/1
- So, 30/5 + 72/12 = 12/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/5+72/12 30/10+72/12 30/5+72/24 90/5+72/12 30/15+72/12 30/5+72/36 30/25+72/12 30/5+72/60 30/35+72/12 30/5+72/84