Add 63/90 and 27/60
63/90 + 27/60 is 23/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
63/90 = 63 × 2/90 × 2 = 126/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
27/60 = 27 × 3/60 × 3 = 81/180 - Add the two like fractions:
126/180 + 81/180 = 126 + 81/180 = 207/180 - 207/180 simplified gives 23/20
- So, 63/90 + 27/60 = 23/20
In mixed form: 13/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/90+54/60 63/90+81/60