Add 20/42 and 72/3
1st number: 20/42, 2nd number: 24 0/3
20/42 + 72/3 is 514/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 3 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
20/42 = 20 × 1/42 × 1 = 20/42 - Likewise, for the 2nd fraction, since 3 × 14 = 42,
72/3 = 72 × 14/3 × 14 = 1008/42 - Add the two like fractions:
20/42 + 1008/42 = 20 + 1008/42 = 1028/42 - 1028/42 simplified gives 514/21
- So, 20/42 + 72/3 = 514/21
In mixed form: 2410/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/42+72/3 20/84+72/3 20/42+72/6 60/42+72/3 20/42+72/9 20/42+72/15 20/42+72/21