Add 12/16 and 18/20
12/16 + 18/20 is 33/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
12/16 = 12 × 5/16 × 5 = 60/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
18/20 = 18 × 4/20 × 4 = 72/80 - Add the two like fractions:
60/80 + 72/80 = 60 + 72/80 = 132/80 - 132/80 simplified gives 33/20
- So, 12/16 + 18/20 = 33/20
In mixed form: 113/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/16+18/20 12/16+36/20 12/32+18/20 12/16+18/40 36/16+18/20 12/16+54/20 12/48+18/20 12/16+18/60 60/16+18/20 12/16+90/20 12/80+18/20 84/16+18/20