Add 7/42 and 8/56
7/42 + 8/56 is 13/42.
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,
8/56 = 8 × 3/56 × 3 = 24/168 - Add the two like fractions:
28/168 + 24/168 = 28 + 24/168 = 52/168 - 52/168 simplified gives 13/42
- So, 7/42 + 8/56 = 13/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/42+8/56 7/42+16/56 7/84+8/56 21/42+8/56 7/42+24/56 35/42+8/56 7/42+40/56 49/42+8/56