Add 42/72 and 18/14
1st number: 42/72, 2nd number: 1 4/14
42/72 + 18/14 is 157/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 14 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
42/72 = 42 × 7/72 × 7 = 294/504 - Likewise, for the 2nd fraction, since 14 × 36 = 504,
18/14 = 18 × 36/14 × 36 = 648/504 - Add the two like fractions:
294/504 + 648/504 = 294 + 648/504 = 942/504 - 942/504 simplified gives 157/84
- So, 42/72 + 18/14 = 157/84
In mixed form: 173/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/72+18/14 42/72+36/14 42/72+18/28 42/72+54/14 42/72+18/42 42/72+90/14 42/72+18/70 42/72+18/98