Add 27/21 and 63/10
1st number: 1 6/21, 2nd number: 6 3/10
27/21 + 63/10 is 531/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
27/21 = 27 × 10/21 × 10 = 270/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
63/10 = 63 × 21/10 × 21 = 1323/210 - Add the two like fractions:
270/210 + 1323/210 = 270 + 1323/210 = 1593/210 - 1593/210 simplified gives 531/70
- So, 27/21 + 63/10 = 531/70
In mixed form: 741/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/21+63/10 27/42+63/10 27/21+63/20 81/21+63/10 27/63+63/10 27/21+63/30 27/21+63/50 27/21+63/70