Add 27/20 and 18/16
1st number: 1 7/20, 2nd number: 1 2/16
27/20 + 18/16 is 99/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
27/20 = 27 × 4/20 × 4 = 108/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
18/16 = 18 × 5/16 × 5 = 90/80 - Add the two like fractions:
108/80 + 90/80 = 108 + 90/80 = 198/80 - 198/80 simplified gives 99/40
- So, 27/20 + 18/16 = 99/40
In mixed form: 219/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20+18/16 27/20+36/16 27/40+18/16 27/20+18/32 81/20+18/16 27/20+54/16 27/60+18/16 27/20+18/48 27/20+90/16 27/20+18/80