Add 12/16 and 45/20
1st number: 12/16, 2nd number: 2 5/20
12/16 + 45/20 is 3/1.
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,
45/20 = 45 × 4/20 × 4 = 180/80 - Add the two like fractions:
60/80 + 180/80 = 60 + 180/80 = 240/80 - 240/80 simplified gives 3/1
- So, 12/16 + 45/20 = 3/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/16+45/20 12/16+90/20 12/32+45/20 12/16+45/40 36/16+45/20 12/48+45/20 12/16+45/60 60/16+45/20 12/80+45/20 84/16+45/20