Add 90/45 and 5/75
1st number: 2 0/45, 2nd number: 5/75
90/45 + 5/75 is 31/15.
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,
5/75 = 5 × 3/75 × 3 = 15/225 - Add the two like fractions:
450/225 + 15/225 = 450 + 15/225 = 465/225 - 465/225 simplified gives 31/15
- So, 90/45 + 5/75 = 31/15
In mixed form: 21/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/45+10/75 90/45+15/75 90/45+25/75 90/45+35/75