Add 54/72 and 2/42
54/72 + 2/42 is 67/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 42 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
54/72 = 54 × 7/72 × 7 = 378/504 - Likewise, for the 2nd fraction, since 42 × 12 = 504,
2/42 = 2 × 12/42 × 12 = 24/504 - Add the two like fractions:
378/504 + 24/504 = 378 + 24/504 = 402/504 - 402/504 simplified gives 67/84
- So, 54/72 + 2/42 = 67/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/72+4/42 54/72+2/84 54/72+6/42 54/72+10/42 54/72+14/42