Add 18/63 and 1/90
18/63 + 1/90 is 187/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
18/63 = 18 × 10/63 × 10 = 180/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
1/90 = 1 × 7/90 × 7 = 7/630 - Add the two like fractions:
180/630 + 7/630 = 180 + 7/630 = 187/630 - So, 18/63 + 1/90 = 187/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/63+1/90 18/63+2/90 54/63+1/90 18/63+3/90 90/63+1/90 18/63+5/90 18/63+7/90