Add 21/2 and 30/6
1st number: 10 1/2, 2nd number: 5 0/6
21/2 + 30/6 is 31/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 6 is 6
Next, find the equivalent fraction of both fractional numbers with denominator 6 - For the 1st fraction, since 2 × 3 = 6,
21/2 = 21 × 3/2 × 3 = 63/6 - Likewise, for the 2nd fraction, since 6 × 1 = 6,
30/6 = 30 × 1/6 × 1 = 30/6 - Add the two like fractions:
63/6 + 30/6 = 63 + 30/6 = 93/6 - 93/6 simplified gives 31/2
- So, 21/2 + 30/6 = 31/2
In mixed form: 151/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/2+30/6 21/2+60/6 21/4+30/6 21/2+30/12 63/2+30/6 21/2+90/6 21/6+30/6 21/2+30/18 21/10+30/6 21/14+30/6 21/2+30/42