Add 12/56 and 5/42
12/56 + 5/42 is 1/3.
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,
12/56 = 12 × 3/56 × 3 = 36/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
5/42 = 5 × 4/42 × 4 = 20/168 - Add the two like fractions:
36/168 + 20/168 = 36 + 20/168 = 56/168 - 56/168 simplified gives 1/3
- So, 12/56 + 5/42 = 1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/56+5/42 12/56+10/42 12/56+5/84 36/56+5/42 12/56+15/42 60/56+5/42 12/56+25/42 84/56+5/42 12/56+35/42