Add 8/45 and 15/7
1st number: 8/45, 2nd number: 2 1/7
8/45 + 15/7 is 731/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 7 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
8/45 = 8 × 7/45 × 7 = 56/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
15/7 = 15 × 45/7 × 45 = 675/315 - Add the two like fractions:
56/315 + 675/315 = 56 + 675/315 = 731/315 - So, 8/45 + 15/7 = 731/315
In mixed form: 2101/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45+15/7 8/45+30/7 8/90+15/7 8/45+15/14 24/45+15/7 8/45+45/7 8/45+15/21 40/45+15/7 8/45+75/7 8/45+15/35 56/45+15/7 8/45+15/49