Add 56/21 and 72/4
1st number: 2 14/21, 2nd number: 18 0/4
56/21 + 72/4 is 62/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
56/21 = 56 × 4/21 × 4 = 224/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
72/4 = 72 × 21/4 × 21 = 1512/84 - Add the two like fractions:
224/84 + 1512/84 = 224 + 1512/84 = 1736/84 - 1736/84 simplified gives 62/3
- So, 56/21 + 72/4 = 62/3
In mixed form: 202/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42+72/4 56/21+72/8 56/63+72/4 56/21+72/12 56/21+72/20 56/21+72/28