Add 72/45 and 28/6
1st number: 1 27/45, 2nd number: 4 4/6
72/45 + 28/6 is 94/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 6 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
72/45 = 72 × 2/45 × 2 = 144/90 - Likewise, for the 2nd fraction, since 6 × 15 = 90,
28/6 = 28 × 15/6 × 15 = 420/90 - Add the two like fractions:
144/90 + 420/90 = 144 + 420/90 = 564/90 - 564/90 simplified gives 94/15
- So, 72/45 + 28/6 = 94/15
In mixed form: 64/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/45+56/6 72/90+28/6 72/45+28/12 72/45+84/6 72/45+28/18 72/45+28/30 72/45+28/42