Add 27/20 and 28/63
1st number: 1 7/20, 2nd number: 28/63
27/20 + 28/63 is 323/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
27/20 = 27 × 63/20 × 63 = 1701/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
28/63 = 28 × 20/63 × 20 = 560/1260 - Add the two like fractions:
1701/1260 + 560/1260 = 1701 + 560/1260 = 2261/1260 - 2261/1260 simplified gives 323/180
- So, 27/20 + 28/63 = 323/180
In mixed form: 1143/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20+28/63 27/20+56/63 27/40+28/63 81/20+28/63 27/20+84/63 27/60+28/63