Add 10/15 and 45/7
1st number: 10/15, 2nd number: 6 3/7
10/15 + 45/7 is 149/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
10/15 = 10 × 7/15 × 7 = 70/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
45/7 = 45 × 15/7 × 15 = 675/105 - Add the two like fractions:
70/105 + 675/105 = 70 + 675/105 = 745/105 - 745/105 simplified gives 149/21
- So, 10/15 + 45/7 = 149/21
In mixed form: 72/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/15+45/7 10/15+90/7 10/30+45/7 10/15+45/14 30/15+45/7 10/45+45/7 10/15+45/21 50/15+45/7 10/75+45/7 10/15+45/35 70/15+45/7 10/15+45/49