Add 54/42 and 2/3
1st number: 1 12/42, 2nd number: 2/3
54/42 + 2/3 is 41/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 3 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
54/42 = 54 × 1/42 × 1 = 54/42 - Likewise, for the 2nd fraction, since 3 × 14 = 42,
2/3 = 2 × 14/3 × 14 = 28/42 - Add the two like fractions:
54/42 + 28/42 = 54 + 28/42 = 82/42 - 82/42 simplified gives 41/21
- So, 54/42 + 2/3 = 41/21
In mixed form: 120/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/42+4/3 54/84+2/3 54/42+2/6 54/42+6/3 54/42+2/9 54/42+10/3 54/42+2/15 54/42+14/3 54/42+2/21