Add 72/20 and 48/16
1st number: 3 12/20, 2nd number: 3 0/16
72/20 + 48/16 is 33/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
72/20 = 72 × 4/20 × 4 = 288/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
48/16 = 48 × 5/16 × 5 = 240/80 - Add the two like fractions:
288/80 + 240/80 = 288 + 240/80 = 528/80 - 528/80 simplified gives 33/5
- So, 72/20 + 48/16 = 33/5
In mixed form: 63/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/20+96/16 72/40+48/16 72/20+48/32 72/60+48/16 72/20+48/80