Add 45/16 and 20/12
1st number: 2 13/16, 2nd number: 1 8/12
45/16 + 20/12 is 215/48.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 12 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 16 × 3 = 48,
45/16 = 45 × 3/16 × 3 = 135/48 - Likewise, for the 2nd fraction, since 12 × 4 = 48,
20/12 = 20 × 4/12 × 4 = 80/48 - Add the two like fractions:
135/48 + 80/48 = 135 + 80/48 = 215/48 - So, 45/16 + 20/12 = 215/48
In mixed form: 423/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/16+20/12 45/16+40/12 45/32+20/12 45/16+20/24 45/16+60/12 45/48+20/12 45/16+20/36 45/80+20/12 45/16+20/60 45/16+20/84