Add 70/30 and 72/9
1st number: 2 10/30, 2nd number: 8 0/9
70/30 + 72/9 is 31/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
70/30 = 70 × 3/30 × 3 = 210/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
72/9 = 72 × 10/9 × 10 = 720/90 - Add the two like fractions:
210/90 + 720/90 = 210 + 720/90 = 930/90 - 930/90 simplified gives 31/3
- So, 70/30 + 72/9 = 31/3
In mixed form: 101/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/60+72/9 70/30+72/18 70/90+72/9 70/30+72/27 70/30+72/45 70/30+72/63