Add 42/3 and 20/72
1st number: 14 0/3, 2nd number: 20/72
42/3 + 20/72 is 257/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 3 × 24 = 72,
42/3 = 42 × 24/3 × 24 = 1008/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Add the two like fractions:
1008/72 + 20/72 = 1008 + 20/72 = 1028/72 - 1028/72 simplified gives 257/18
- So, 42/3 + 20/72 = 257/18
In mixed form: 145/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/3+20/72 42/3+40/72 42/6+20/72 42/3+60/72 42/9+20/72 42/15+20/72 42/21+20/72