Add 42/2 and 21/49
1st number: 21 0/2, 2nd number: 21/49
42/2 + 21/49 is 150/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 49 is 98
Next, find the equivalent fraction of both fractional numbers with denominator 98 - For the 1st fraction, since 2 × 49 = 98,
42/2 = 42 × 49/2 × 49 = 2058/98 - Likewise, for the 2nd fraction, since 49 × 2 = 98,
21/49 = 21 × 2/49 × 2 = 42/98 - Add the two like fractions:
2058/98 + 42/98 = 2058 + 42/98 = 2100/98 - 2100/98 simplified gives 150/7
- So, 42/2 + 21/49 = 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+21/49 42/2+42/49 42/4+21/49 42/2+21/98 42/2+63/49 42/6+21/49 42/10+21/49 42/14+21/49