Add 42/2 and 63/20
1st number: 21 0/2, 2nd number: 3 3/20
42/2 + 63/20 is 483/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 2 × 10 = 20,
42/2 = 42 × 10/2 × 10 = 420/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
63/20 = 63 × 1/20 × 1 = 63/20 - Add the two like fractions:
420/20 + 63/20 = 420 + 63/20 = 483/20 - So, 42/2 + 63/20 = 483/20
In mixed form: 243/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2+63/20 42/4+63/20 42/2+63/40 42/6+63/20 42/2+63/60 42/10+63/20 42/14+63/20