Add 27/4 and 28/40
1st number: 6 3/4, 2nd number: 28/40
27/4 + 28/40 is 149/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 4 × 10 = 40,
27/4 = 27 × 10/4 × 10 = 270/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
28/40 = 28 × 1/40 × 1 = 28/40 - Add the two like fractions:
270/40 + 28/40 = 270 + 28/40 = 298/40 - 298/40 simplified gives 149/20
- So, 27/4 + 28/40 = 149/20
In mixed form: 79/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/4+28/40 27/4+56/40 27/8+28/40 27/4+28/80 81/4+28/40 27/4+84/40 27/12+28/40 27/20+28/40 27/28+28/40