Add 30/7 and 60/9
1st number: 4 2/7, 2nd number: 6 6/9
30/7 + 60/9 is 230/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
30/7 = 30 × 9/7 × 9 = 270/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
60/9 = 60 × 7/9 × 7 = 420/63 - Add the two like fractions:
270/63 + 420/63 = 270 + 420/63 = 690/63 - 690/63 simplified gives 230/21
- So, 30/7 + 60/9 = 230/21
In mixed form: 1020/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/7+60/9 30/14+60/9 30/7+60/18 90/7+60/9 30/21+60/9 30/7+60/27 30/35+60/9 30/7+60/45 30/49+60/9 30/7+60/63