Add 7/30 and 72/7
1st number: 7/30, 2nd number: 10 2/7
7/30 + 72/7 is 2209/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
7/30 = 7 × 7/30 × 7 = 49/210 - Likewise, for the 2nd fraction, since 7 × 30 = 210,
72/7 = 72 × 30/7 × 30 = 2160/210 - Add the two like fractions:
49/210 + 2160/210 = 49 + 2160/210 = 2209/210 - So, 7/30 + 72/7 = 2209/210
In mixed form: 10109/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30+72/7 7/60+72/7 7/30+72/14 21/30+72/7 7/90+72/7 7/30+72/21 35/30+72/7 7/30+72/35 49/30+72/7 7/30+72/49