Add 18/72 and 10/84
18/72 + 10/84 is 31/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 84 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
18/72 = 18 × 7/72 × 7 = 126/504 - Likewise, for the 2nd fraction, since 84 × 6 = 504,
10/84 = 10 × 6/84 × 6 = 60/504 - Add the two like fractions:
126/504 + 60/504 = 126 + 60/504 = 186/504 - 186/504 simplified gives 31/84
- So, 18/72 + 10/84 = 31/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/72+10/84 18/72+20/84 54/72+10/84 18/72+30/84 90/72+10/84 18/72+50/84 18/72+70/84