Add 15/75 and 4/45
15/75 + 4/45 is 13/45.
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,
15/75 = 15 × 3/75 × 3 = 45/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
4/45 = 4 × 5/45 × 5 = 20/225 - Add the two like fractions:
45/225 + 20/225 = 45 + 20/225 = 65/225 - 65/225 simplified gives 13/45
- So, 15/75 + 4/45 = 13/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/75+4/45 15/75+8/45 15/75+4/90 45/75+4/45 15/75+12/45 15/75+20/45 15/75+28/45