Add 42/2 and 54/7
1st number: 21 0/2, 2nd number: 7 5/7
42/2 + 54/7 is 201/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
42/2 = 42 × 7/2 × 7 = 294/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
54/7 = 54 × 2/7 × 2 = 108/14 - Add the two like fractions:
294/14 + 108/14 = 294 + 108/14 = 402/14 - 402/14 simplified gives 201/7
- So, 42/2 + 54/7 = 201/7
In mixed form: 285/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2+54/7 42/4+54/7 42/2+54/14 42/6+54/7 42/2+54/21 42/10+54/7 42/2+54/35 42/14+54/7 42/2+54/49