Add 42/2 and 3/7
1st number: 21 0/2, 2nd number: 3/7
42/2 + 3/7 is 150/7.
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,
3/7 = 3 × 2/7 × 2 = 6/14 - Add the two like fractions:
294/14 + 6/14 = 294 + 6/14 = 300/14 - 300/14 simplified gives 150/7
- So, 42/2 + 3/7 = 150/7
In mixed form: 213/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2+3/7 42/2+6/7 42/4+3/7 42/2+3/14 42/2+9/7 42/6+3/7 42/2+3/21 42/2+15/7 42/10+3/7 42/2+3/35 42/2+21/7 42/14+3/7 42/2+3/49