Add 72/45 and 4/5
1st number: 1 27/45, 2nd number: 4/5
72/45 + 4/5 is 12/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
72/45 = 72 × 1/45 × 1 = 72/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
4/5 = 4 × 9/5 × 9 = 36/45 - Add the two like fractions:
72/45 + 36/45 = 72 + 36/45 = 108/45 - 108/45 simplified gives 12/5
- So, 72/45 + 4/5 = 12/5
In mixed form: 22/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/45+8/5 72/90+4/5 72/45+4/10 72/45+12/5 72/45+4/15 72/45+20/5 72/45+4/25 72/45+28/5 72/45+4/35