Add 18/90 and 63/7
1st number: 18/90, 2nd number: 9 0/7
18/90 + 63/7 is 46/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 7 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
18/90 = 18 × 7/90 × 7 = 126/630 - Likewise, for the 2nd fraction, since 7 × 90 = 630,
63/7 = 63 × 90/7 × 90 = 5670/630 - Add the two like fractions:
126/630 + 5670/630 = 126 + 5670/630 = 5796/630 - 5796/630 simplified gives 46/5
- So, 18/90 + 63/7 = 46/5
In mixed form: 91/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/90+63/7 18/90+63/14 54/90+63/7 18/90+63/21 18/90+63/35 18/90+63/49