Add 24/42 and 36/72
24/42 + 36/72 is 15/14.
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,
24/42 = 24 × 12/42 × 12 = 288/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
36/72 = 36 × 7/72 × 7 = 252/504 - Add the two like fractions:
288/504 + 252/504 = 288 + 252/504 = 540/504 - 540/504 simplified gives 15/14
- So, 24/42 + 36/72 = 15/14
In mixed form: 11/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/42+36/72 24/84+36/72 72/42+36/72