Add 2/63 and 40/90
2/63 + 40/90 is 10/21.
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,
2/63 = 2 × 10/63 × 10 = 20/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
40/90 = 40 × 7/90 × 7 = 280/630 - Add the two like fractions:
20/630 + 280/630 = 20 + 280/630 = 300/630 - 300/630 simplified gives 10/21
- So, 2/63 + 40/90 = 10/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/63+40/90 2/63+80/90 6/63+40/90 10/63+40/90 14/63+40/90