Add 16/21 and 63/42
1st number: 16/21, 2nd number: 1 21/42
16/21 + 63/42 is 95/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
16/21 = 16 × 2/21 × 2 = 32/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
63/42 = 63 × 1/42 × 1 = 63/42 - Add the two like fractions:
32/42 + 63/42 = 32 + 63/42 = 95/42 - So, 16/21 + 63/42 = 95/42
In mixed form: 211/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/21+63/42 16/42+63/42 16/21+63/84 48/21+63/42 16/63+63/42 80/21+63/42