Add 90/84 and 84/75
1st number: 1 6/84, 2nd number: 1 9/75
90/84 + 84/75 is 767/350.
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,
90/84 = 90 × 25/84 × 25 = 2250/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
84/75 = 84 × 28/75 × 28 = 2352/2100 - Add the two like fractions:
2250/2100 + 2352/2100 = 2250 + 2352/2100 = 4602/2100 - 4602/2100 simplified gives 767/350
- So, 90/84 + 84/75 = 767/350
In mixed form: 267/350
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: