Add 28/72 and 8/7
1st number: 28/72, 2nd number: 1 1/7
28/72 + 8/7 is 193/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 7 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
28/72 = 28 × 7/72 × 7 = 196/504 - Likewise, for the 2nd fraction, since 7 × 72 = 504,
8/7 = 8 × 72/7 × 72 = 576/504 - Add the two like fractions:
196/504 + 576/504 = 196 + 576/504 = 772/504 - 772/504 simplified gives 193/126
- So, 28/72 + 8/7 = 193/126
In mixed form: 167/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/72+8/7 28/72+16/7 28/72+8/14 84/72+8/7 28/72+24/7 28/72+8/21 28/72+40/7 28/72+8/35 28/72+56/7 28/72+8/49