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