Add 30/9 and 10/7
1st number: 3 3/9, 2nd number: 1 3/7
30/9 + 10/7 is 100/21.
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,
30/9 = 30 × 7/9 × 7 = 210/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
10/7 = 10 × 9/7 × 9 = 90/63 - Add the two like fractions:
210/63 + 90/63 = 210 + 90/63 = 300/63 - 300/63 simplified gives 100/21
- So, 30/9 + 10/7 = 100/21
In mixed form: 416/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9+10/7 30/9+20/7 30/18+10/7 30/9+10/14 90/9+10/7 30/9+30/7 30/27+10/7 30/9+10/21 30/9+50/7 30/45+10/7 30/9+10/35 30/9+70/7 30/63+10/7 30/9+10/49