Add 72/3 and 81/42
1st number: 24 0/3, 2nd number: 1 39/42
72/3 + 81/42 is 363/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 3 × 14 = 42,
72/3 = 72 × 14/3 × 14 = 1008/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
81/42 = 81 × 1/42 × 1 = 81/42 - Add the two like fractions:
1008/42 + 81/42 = 1008 + 81/42 = 1089/42 - 1089/42 simplified gives 363/14
- So, 72/3 + 81/42 = 363/14
In mixed form: 2513/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/6+81/42 72/3+81/84 72/9+81/42 72/15+81/42 72/21+81/42