Add 30/8 and 72/63
1st number: 3 6/8, 2nd number: 1 9/63
30/8 + 72/63 is 137/28.
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,
30/8 = 30 × 63/8 × 63 = 1890/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
72/63 = 72 × 8/63 × 8 = 576/504 - Add the two like fractions:
1890/504 + 576/504 = 1890 + 576/504 = 2466/504 - 2466/504 simplified gives 137/28
- So, 30/8 + 72/63 = 137/28
In mixed form: 425/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8+72/63 30/16+72/63 90/8+72/63 30/24+72/63 30/40+72/63 30/56+72/63