Add 7/20 and 27/8
1st number: 7/20, 2nd number: 3 3/8
7/20 + 27/8 is 149/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
7/20 = 7 × 2/20 × 2 = 14/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
27/8 = 27 × 5/8 × 5 = 135/40 - Add the two like fractions:
14/40 + 135/40 = 14 + 135/40 = 149/40 - So, 7/20 + 27/8 = 149/40
In mixed form: 329/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/20+27/8 7/20+54/8 7/40+27/8 7/20+27/16 21/20+27/8 7/20+81/8 7/60+27/8 7/20+27/24 35/20+27/8 7/20+27/40 49/20+27/8 7/20+27/56