Add 28/42 and 63/10
1st number: 28/42, 2nd number: 6 3/10
28/42 + 63/10 is 209/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
28/42 = 28 × 5/42 × 5 = 140/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
63/10 = 63 × 21/10 × 21 = 1323/210 - Add the two like fractions:
140/210 + 1323/210 = 140 + 1323/210 = 1463/210 - 1463/210 simplified gives 209/30
- So, 28/42 + 63/10 = 209/30
In mixed form: 629/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42+63/10 28/84+63/10 28/42+63/20 84/42+63/10 28/42+63/30 28/42+63/50 28/42+63/70