Add 25/42 and 4/72
25/42 + 4/72 is 41/63.
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,
25/42 = 25 × 12/42 × 12 = 300/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
4/72 = 4 × 7/72 × 7 = 28/504 - Add the two like fractions:
300/504 + 28/504 = 300 + 28/504 = 328/504 - 328/504 simplified gives 41/63
- So, 25/42 + 4/72 = 41/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42+4/72 25/42+8/72 25/84+4/72 75/42+4/72 25/42+12/72 25/42+20/72 25/42+28/72