Add 9/7 and 30/72
1st number: 1 2/7, 2nd number: 30/72
9/7 + 30/72 is 143/84.
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,
30/72 = 30 × 7/72 × 7 = 210/504 - Add the two like fractions:
648/504 + 210/504 = 648 + 210/504 = 858/504 - 858/504 simplified gives 143/84
- So, 9/7 + 30/72 = 143/84
In mixed form: 159/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/7+30/72 9/7+60/72 9/14+30/72 27/7+30/72 9/7+90/72 9/21+30/72 45/7+30/72 9/35+30/72 63/7+30/72 9/49+30/72