Add 40/12 and 72/10
1st number: 3 4/12, 2nd number: 7 2/10
40/12 + 72/10 is 158/15.
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,
40/12 = 40 × 5/12 × 5 = 200/60 - Likewise, for the 2nd fraction, since 10 × 6 = 60,
72/10 = 72 × 6/10 × 6 = 432/60 - Add the two like fractions:
200/60 + 432/60 = 200 + 432/60 = 632/60 - 632/60 simplified gives 158/15
- So, 40/12 + 72/10 = 158/15
In mixed form: 108/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12+72/10 40/24+72/10 40/12+72/20 40/36+72/10 40/12+72/30 40/60+72/10 40/12+72/50 40/84+72/10 40/12+72/70