Add 7/42 and 9/56
7/42 + 9/56 is 55/168.
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,
7/42 = 7 × 4/42 × 4 = 28/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
9/56 = 9 × 3/56 × 3 = 27/168 - Add the two like fractions:
28/168 + 27/168 = 28 + 27/168 = 55/168 - So, 7/42 + 9/56 = 55/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/42+9/56 7/42+18/56 7/84+9/56 21/42+9/56 7/42+27/56 35/42+9/56 7/42+45/56 49/42+9/56 7/42+63/56