Add 21/30 and 28/6
1st number: 21/30, 2nd number: 4 4/6
21/30 + 28/6 is 161/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 6 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
21/30 = 21 × 1/30 × 1 = 21/30 - Likewise, for the 2nd fraction, since 6 × 5 = 30,
28/6 = 28 × 5/6 × 5 = 140/30 - Add the two like fractions:
21/30 + 140/30 = 21 + 140/30 = 161/30 - So, 21/30 + 28/6 = 161/30
In mixed form: 511/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30+28/6 21/30+56/6 21/60+28/6 21/30+28/12 63/30+28/6 21/30+84/6 21/90+28/6 21/30+28/18 21/30+28/30 21/30+28/42