Add 72/45 and 3/6
1st number: 1 27/45, 2nd number: 3/6
72/45 + 3/6 is 21/10.
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,
3/6 = 3 × 15/6 × 15 = 45/90 - Add the two like fractions:
144/90 + 45/90 = 144 + 45/90 = 189/90 - 189/90 simplified gives 21/10
- So, 72/45 + 3/6 = 21/10
In mixed form: 21/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/90+3/6 72/45+3/12 72/45+9/6 72/45+3/18 72/45+15/6 72/45+3/30 72/45+21/6 72/45+3/42