Add 56/42 and 4/72
1st number: 1 14/42, 2nd number: 4/72
56/42 + 4/72 is 25/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 42 × 12 = 504,
56/42 = 56 × 12/42 × 12 = 672/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
4/72 = 4 × 7/72 × 7 = 28/504 - Add the two like fractions:
672/504 + 28/504 = 672 + 28/504 = 700/504 - 700/504 simplified gives 25/18
- So, 56/42 + 4/72 = 25/18
In mixed form: 17/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42+8/72 56/84+4/72 56/42+12/72 56/42+20/72 56/42+28/72