Add 1/45 and 63/90
1/45 + 63/90 is 13/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
1/45 = 1 × 2/45 × 2 = 2/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
63/90 = 63 × 1/90 × 1 = 63/90 - Add the two like fractions:
2/90 + 63/90 = 2 + 63/90 = 65/90 - 65/90 simplified gives 13/18
- So, 1/45 + 63/90 = 13/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/45+63/90 1/90+63/90 3/45+63/90 5/45+63/90 7/45+63/90