Add 27/4 and 30/8
1st number: 6 3/4, 2nd number: 3 6/8
27/4 + 30/8 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 4 × 2 = 8,
27/4 = 27 × 2/4 × 2 = 54/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
30/8 = 30 × 1/8 × 1 = 30/8 - Add the two like fractions:
54/8 + 30/8 = 54 + 30/8 = 84/8 - 84/8 simplified gives 21/2
- So, 27/4 + 30/8 = 21/2
In mixed form: 101/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/4+30/8 27/4+60/8 27/8+30/8 27/4+30/16 81/4+30/8 27/4+90/8 27/12+30/8 27/4+30/24 27/20+30/8 27/4+30/40 27/28+30/8 27/4+30/56