Add 32/84 and 42/72
32/84 + 42/72 is 27/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 84 × 6 = 504,
32/84 = 32 × 6/84 × 6 = 192/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
42/72 = 42 × 7/72 × 7 = 294/504 - Add the two like fractions:
192/504 + 294/504 = 192 + 294/504 = 486/504 - 486/504 simplified gives 27/28
- So, 32/84 + 42/72 = 27/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/84+42/72 32/84+84/72 96/84+42/72