Add 63/18 and 28/20
1st number: 3 9/18, 2nd number: 1 8/20
63/18 + 28/20 is 49/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
63/18 = 63 × 10/18 × 10 = 630/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
28/20 = 28 × 9/20 × 9 = 252/180 - Add the two like fractions:
630/180 + 252/180 = 630 + 252/180 = 882/180 - 882/180 simplified gives 49/10
- So, 63/18 + 28/20 = 49/10
In mixed form: 49/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/18+56/20 63/36+28/20 63/18+28/40 63/18+84/20 63/54+28/20 63/18+28/60 63/90+28/20