Add 15/8 and 90/63
1st number: 1 7/8, 2nd number: 1 27/63
15/8 + 90/63 is 185/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 8 × 63 = 504,
15/8 = 15 × 63/8 × 63 = 945/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
90/63 = 90 × 8/63 × 8 = 720/504 - Add the two like fractions:
945/504 + 720/504 = 945 + 720/504 = 1665/504 - 1665/504 simplified gives 185/56
- So, 15/8 + 90/63 = 185/56
In mixed form: 317/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/8+90/63 15/16+90/63 45/8+90/63 15/24+90/63 75/8+90/63 15/40+90/63 15/56+90/63