Add 21/2 and 50/42
1st number: 10 1/2, 2nd number: 1 8/42
21/2 + 50/42 is 491/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
21/2 = 21 × 21/2 × 21 = 441/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
50/42 = 50 × 1/42 × 1 = 50/42 - Add the two like fractions:
441/42 + 50/42 = 441 + 50/42 = 491/42 - So, 21/2 + 50/42 = 491/42
In mixed form: 1129/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/2+50/42 21/4+50/42 21/2+50/84 63/2+50/42 21/6+50/42 21/10+50/42 21/14+50/42