Add 4/42 and 10/72
4/42 + 10/72 is 59/252.
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,
4/42 = 4 × 12/42 × 12 = 48/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
10/72 = 10 × 7/72 × 7 = 70/504 - Add the two like fractions:
48/504 + 70/504 = 48 + 70/504 = 118/504 - 118/504 simplified gives 59/252
- So, 4/42 + 10/72 = 59/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/42+10/72 4/42+20/72 4/84+10/72 12/42+10/72 4/42+30/72 20/42+10/72 4/42+50/72 28/42+10/72 4/42+70/72