Add 28/56 and 4/42
28/56 + 4/42 is 25/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
28/56 = 28 × 3/56 × 3 = 84/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
4/42 = 4 × 4/42 × 4 = 16/168 - Add the two like fractions:
84/168 + 16/168 = 84 + 16/168 = 100/168 - 100/168 simplified gives 25/42
- So, 28/56 + 4/42 = 25/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/56+8/42 28/56+4/84 84/56+4/42 28/56+12/42 28/56+20/42 28/56+28/42