Add 56/42 and 4/21
1st number: 1 14/42, 2nd number: 4/21
56/42 + 4/21 is 32/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
56/42 = 56 × 1/42 × 1 = 56/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
4/21 = 4 × 2/21 × 2 = 8/42 - Add the two like fractions:
56/42 + 8/42 = 56 + 8/42 = 64/42 - 64/42 simplified gives 32/21
- So, 56/42 + 4/21 = 32/21
In mixed form: 111/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42+8/21 56/84+4/21 56/42+4/42 56/42+12/21 56/42+4/63 56/42+20/21 56/42+28/21