Answers

Add 80/75 and 84/81

1^st number: 1 5/75, 2^nd number: 1 3/81

80/75 + 84/81 is 284/135.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 81 is 2025
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2025
2. For the 1st fraction, since 75 × 27 = 2025,
   80/75 = 80 × 27/75 × 27 = 2160/2025
3. Likewise, for the 2nd fraction, since 81 × 25 = 2025,
   84/81 = 84 × 25/81 × 25 = 2100/2025
4. Add the two like fractions:
   2160/2025 + 2100/2025 = 2160 + 2100/2025 = 4260/2025
5. 4260/2025 simplified gives 284/135
6. So, 80/75 + 84/81 = 284/135
   In mixed form: 214/135

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

Add Fractions Calculator