Add 36/84 and 90/75
1st number: 36/84, 2nd number: 1 15/75
36/84 + 90/75 is 57/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 75 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
36/84 = 36 × 25/84 × 25 = 900/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
90/75 = 90 × 28/75 × 28 = 2520/2100 - Add the two like fractions:
900/2100 + 2520/2100 = 900 + 2520/2100 = 3420/2100 - 3420/2100 simplified gives 57/35
- So, 36/84 + 90/75 = 57/35
In mixed form: 122/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/84+90/75