Add 63/45 and 15/7
1st number: 1 18/45, 2nd number: 2 1/7
63/45 + 15/7 is 124/35.
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,
63/45 = 63 × 7/45 × 7 = 441/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
15/7 = 15 × 45/7 × 45 = 675/315 - Add the two like fractions:
441/315 + 675/315 = 441 + 675/315 = 1116/315 - 1116/315 simplified gives 124/35
- So, 63/45 + 15/7 = 124/35
In mixed form: 319/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/45+30/7 63/90+15/7 63/45+15/14 63/45+45/7 63/45+15/21 63/45+75/7 63/45+15/35 63/45+15/49