Add 25/56 and 90/63
1st number: 25/56, 2nd number: 1 27/63
25/56 + 90/63 is 15/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
25/56 = 25 × 9/56 × 9 = 225/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
90/63 = 90 × 8/63 × 8 = 720/504 - Add the two like fractions:
225/504 + 720/504 = 225 + 720/504 = 945/504 - 945/504 simplified gives 15/8
- So, 25/56 + 90/63 = 15/8
In mixed form: 17/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/56+90/63 75/56+90/63