Add 72/9 and 4/7
1st number: 8 0/9, 2nd number: 4/7
72/9 + 4/7 is 60/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
72/9 = 72 × 7/9 × 7 = 504/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
4/7 = 4 × 9/7 × 9 = 36/63 - Add the two like fractions:
504/63 + 36/63 = 504 + 36/63 = 540/63 - 540/63 simplified gives 60/7
- So, 72/9 + 4/7 = 60/7
In mixed form: 84/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/9+8/7 72/18+4/7 72/9+4/14 72/9+12/7 72/27+4/7 72/9+4/21 72/9+20/7 72/45+4/7 72/9+4/35 72/9+28/7 72/63+4/7 72/9+4/49