Add 42/5 and 63/20
1st number: 8 2/5, 2nd number: 3 3/20
42/5 + 63/20 is 231/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 5 × 4 = 20,
42/5 = 42 × 4/5 × 4 = 168/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
63/20 = 63 × 1/20 × 1 = 63/20 - Add the two like fractions:
168/20 + 63/20 = 168 + 63/20 = 231/20 - So, 42/5 + 63/20 = 231/20
In mixed form: 1111/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5+63/20 42/10+63/20 42/5+63/40 42/15+63/20 42/5+63/60 42/25+63/20 42/35+63/20