Add 4/42 and 63/56
1st number: 4/42, 2nd number: 1 7/56
4/42 + 63/56 is 205/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
4/42 = 4 × 4/42 × 4 = 16/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
63/56 = 63 × 3/56 × 3 = 189/168 - Add the two like fractions:
16/168 + 189/168 = 16 + 189/168 = 205/168 - So, 4/42 + 63/56 = 205/168
In mixed form: 137/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/42+63/56 4/84+63/56 12/42+63/56 20/42+63/56 28/42+63/56