Add 4/63 and 7/90
4/63 + 7/90 is 89/630.
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,
4/63 = 4 × 10/63 × 10 = 40/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
7/90 = 7 × 7/90 × 7 = 49/630 - Add the two like fractions:
40/630 + 49/630 = 40 + 49/630 = 89/630 - So, 4/63 + 7/90 = 89/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/63+7/90 4/63+14/90 12/63+7/90 4/63+21/90 20/63+7/90 4/63+35/90 28/63+7/90 4/63+49/90