Add 63/90 and 7/18
63/90 + 7/18 is 49/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 18 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 18 × 5 = 90,
7/18 = 7 × 5/18 × 5 = 35/90 - Add the two like fractions:
63/90 + 35/90 = 63 + 35/90 = 98/90 - 98/90 simplified gives 49/45
- So, 63/90 + 7/18 = 49/45
In mixed form: 14/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/90+14/18 63/90+7/36 63/90+21/18 63/90+7/54 63/90+35/18 63/90+7/90 63/90+49/18