Add 54/56 and 70/63
1st number: 54/56, 2nd number: 1 7/63
54/56 + 70/63 is 523/252.
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,
54/56 = 54 × 9/56 × 9 = 486/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
70/63 = 70 × 8/63 × 8 = 560/504 - Add the two like fractions:
486/504 + 560/504 = 486 + 560/504 = 1046/504 - 1046/504 simplified gives 523/252
- So, 54/56 + 70/63 = 523/252
In mixed form: 219/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: