Add 30/6 and 21/7
1st number: 5 0/6, 2nd number: 3 0/7
30/6 + 21/7 is 8/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
30/6 = 30 × 7/6 × 7 = 210/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
21/7 = 21 × 6/7 × 6 = 126/42 - Add the two like fractions:
210/42 + 126/42 = 210 + 126/42 = 336/42 - 336/42 simplified gives 8/1
- So, 30/6 + 21/7 = 8/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/6+21/7 30/6+42/7 30/12+21/7 30/6+21/14 90/6+21/7 30/6+63/7 30/18+21/7 30/6+21/35 30/42+21/7 30/6+21/49