Add 25/7 and 15/63
1st number: 3 4/7, 2nd number: 15/63
25/7 + 15/63 is 80/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
25/7 = 25 × 9/7 × 9 = 225/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
15/63 = 15 × 1/63 × 1 = 15/63 - Add the two like fractions:
225/63 + 15/63 = 225 + 15/63 = 240/63 - 240/63 simplified gives 80/21
- So, 25/7 + 15/63 = 80/21
In mixed form: 317/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/7+15/63 25/7+30/63 25/14+15/63 75/7+15/63 25/7+45/63 25/21+15/63 25/7+75/63 25/35+15/63 25/49+15/63