Add 9/7 and 75/72
1st number: 1 2/7, 2nd number: 1 3/72
9/7 + 75/72 is 391/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 7 × 72 = 504,
9/7 = 9 × 72/7 × 72 = 648/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
75/72 = 75 × 7/72 × 7 = 525/504 - Add the two like fractions:
648/504 + 525/504 = 648 + 525/504 = 1173/504 - 1173/504 simplified gives 391/168
- So, 9/7 + 75/72 = 391/168
In mixed form: 255/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/7+75/72 9/14+75/72 27/7+75/72 9/21+75/72 45/7+75/72 9/35+75/72 63/7+75/72 9/49+75/72