Add 90/45 and 18/75
1st number: 2 0/45, 2nd number: 18/75
90/45 + 18/75 is 56/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 75 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 45 × 5 = 225,
90/45 = 90 × 5/45 × 5 = 450/225 - Likewise, for the 2nd fraction, since 75 × 3 = 225,
18/75 = 18 × 3/75 × 3 = 54/225 - Add the two like fractions:
450/225 + 54/225 = 450 + 54/225 = 504/225 - 504/225 simplified gives 56/25
- So, 90/45 + 18/75 = 56/25
In mixed form: 26/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/45+36/75 90/45+54/75 90/45+90/75