Add 75/15 and 90/75
1st number: 5 0/15, 2nd number: 1 15/75
75/15 + 90/75 is 31/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 75 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 15 × 5 = 75,
75/15 = 75 × 5/15 × 5 = 375/75 - Likewise, for the 2nd fraction, since 75 × 1 = 75,
90/75 = 90 × 1/75 × 1 = 90/75 - Add the two like fractions:
375/75 + 90/75 = 375 + 90/75 = 465/75 - 465/75 simplified gives 31/5
- So, 75/15 + 90/75 = 31/5
In mixed form: 61/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/30+90/75 75/45+90/75