Add 42/2 and 28/7
1st number: 21 0/2, 2nd number: 4 0/7
42/2 + 28/7 is 25/1.
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,
28/7 = 28 × 2/7 × 2 = 56/14 - Add the two like fractions:
294/14 + 56/14 = 294 + 56/14 = 350/14 - 350/14 simplified gives 25/1
- So, 42/2 + 28/7 = 25/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2+28/7 42/2+56/7 42/4+28/7 42/2+28/14 42/2+84/7 42/6+28/7 42/2+28/21 42/10+28/7 42/2+28/35 42/14+28/7 42/2+28/49