Add 7/63 and 6/90
7/63 + 6/90 is 8/45.
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,
7/63 = 7 × 10/63 × 10 = 70/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
6/90 = 6 × 7/90 × 7 = 42/630 - Add the two like fractions:
70/630 + 42/630 = 70 + 42/630 = 112/630 - 112/630 simplified gives 8/45
- So, 7/63 + 6/90 = 8/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/63+6/90 7/63+12/90 21/63+6/90 7/63+18/90 35/63+6/90 7/63+30/90 49/63+6/90 7/63+42/90