Add 5/42 and 63/8
1st number: 5/42, 2nd number: 7 7/8
5/42 + 63/8 is 1343/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
5/42 = 5 × 4/42 × 4 = 20/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
63/8 = 63 × 21/8 × 21 = 1323/168 - Add the two like fractions:
20/168 + 1323/168 = 20 + 1323/168 = 1343/168 - So, 5/42 + 63/8 = 1343/168
In mixed form: 7167/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/42+63/8 5/84+63/8 5/42+63/16 15/42+63/8 5/42+63/24 25/42+63/8 5/42+63/40 35/42+63/8 5/42+63/56