Add 45/75 and 72/45
1st number: 45/75, 2nd number: 1 27/45
45/75 + 72/45 is 11/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 45 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 75 × 3 = 225,
45/75 = 45 × 3/75 × 3 = 135/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
72/45 = 72 × 5/45 × 5 = 360/225 - Add the two like fractions:
135/225 + 360/225 = 135 + 360/225 = 495/225 - 495/225 simplified gives 11/5
- So, 45/75 + 72/45 = 11/5
In mixed form: 21/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/75+72/45 45/75+72/90