Add 4/16 and 12/20
4/16 + 12/20 is 17/20.
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,
4/16 = 4 × 5/16 × 5 = 20/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
12/20 = 12 × 4/20 × 4 = 48/80 - Add the two like fractions:
20/80 + 48/80 = 20 + 48/80 = 68/80 - 68/80 simplified gives 17/20
- So, 4/16 + 12/20 = 17/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/16+12/20 4/16+24/20 4/32+12/20 4/16+12/40 12/16+12/20 4/16+36/20 4/48+12/20 4/16+12/60 20/16+12/20 4/16+60/20 4/80+12/20 28/16+12/20 4/16+84/20