Add 28/12 and 72/10
1st number: 2 4/12, 2nd number: 7 2/10
28/12 + 72/10 is 143/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 10 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
28/12 = 28 × 5/12 × 5 = 140/60 - Likewise, for the 2nd fraction, since 10 × 6 = 60,
72/10 = 72 × 6/10 × 6 = 432/60 - Add the two like fractions:
140/60 + 432/60 = 140 + 432/60 = 572/60 - 572/60 simplified gives 143/15
- So, 28/12 + 72/10 = 143/15
In mixed form: 98/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12+72/10 28/24+72/10 28/12+72/20 84/12+72/10 28/36+72/10 28/12+72/30 28/60+72/10 28/12+72/50 28/84+72/10 28/12+72/70