Add 9/7 and 15/10
1st number: 1 2/7, 2nd number: 1 5/10
9/7 + 15/10 is 39/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
9/7 = 9 × 10/7 × 10 = 90/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
15/10 = 15 × 7/10 × 7 = 105/70 - Add the two like fractions:
90/70 + 105/70 = 90 + 105/70 = 195/70 - 195/70 simplified gives 39/14
- So, 9/7 + 15/10 = 39/14
In mixed form: 211/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/7+15/10 9/7+30/10 9/14+15/10 9/7+15/20 27/7+15/10 9/7+45/10 9/21+15/10 9/7+15/30 45/7+15/10 9/7+75/10 9/35+15/10 9/7+15/50 63/7+15/10 9/49+15/10 9/7+15/70