Add 27/7 and 30/9
1st number: 3 6/7, 2nd number: 3 3/9
27/7 + 30/9 is 151/21.
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,
27/7 = 27 × 9/7 × 9 = 243/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
30/9 = 30 × 7/9 × 7 = 210/63 - Add the two like fractions:
243/63 + 210/63 = 243 + 210/63 = 453/63 - 453/63 simplified gives 151/21
- So, 27/7 + 30/9 = 151/21
In mixed form: 74/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/7+30/9 27/7+60/9 27/14+30/9 27/7+30/18 81/7+30/9 27/7+90/9 27/21+30/9 27/7+30/27 27/35+30/9 27/7+30/45 27/49+30/9 27/7+30/63