Add 12/15 and 20/16
1st number: 12/15, 2nd number: 1 4/16
12/15 + 20/16 is 41/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
12/15 = 12 × 16/15 × 16 = 192/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
20/16 = 20 × 15/16 × 15 = 300/240 - Add the two like fractions:
192/240 + 300/240 = 192 + 300/240 = 492/240 - 492/240 simplified gives 41/20
- So, 12/15 + 20/16 = 41/20
In mixed form: 21/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/15+20/16 12/15+40/16 12/30+20/16 12/15+20/32 36/15+20/16 12/15+60/16 12/45+20/16 12/15+20/48 60/15+20/16 12/75+20/16 12/15+20/80 84/15+20/16