Add 54/7 and 63/90
1st number: 7 5/7, 2nd number: 63/90
54/7 + 63/90 is 589/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 7 × 90 = 630,
54/7 = 54 × 90/7 × 90 = 4860/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
63/90 = 63 × 7/90 × 7 = 441/630 - Add the two like fractions:
4860/630 + 441/630 = 4860 + 441/630 = 5301/630 - 5301/630 simplified gives 589/70
- So, 54/7 + 63/90 = 589/70
In mixed form: 829/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/14+63/90 54/21+63/90 54/35+63/90 54/49+63/90