Add 72/20 and 4/6
1st number: 3 12/20, 2nd number: 4/6
72/20 + 4/6 is 64/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 6 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
72/20 = 72 × 3/20 × 3 = 216/60 - Likewise, for the 2nd fraction, since 6 × 10 = 60,
4/6 = 4 × 10/6 × 10 = 40/60 - Add the two like fractions:
216/60 + 40/60 = 216 + 40/60 = 256/60 - 256/60 simplified gives 64/15
- So, 72/20 + 4/6 = 64/15
In mixed form: 44/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/20+8/6 72/40+4/6 72/20+4/12 72/20+12/6 72/60+4/6 72/20+4/18 72/20+20/6 72/20+4/30 72/20+28/6 72/20+4/42