Answers

Add 75/84 and 12/54

75/84 + 12/54 is 281/252.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 54 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 84 × 9 = 756,
   75/84 = 75 × 9/84 × 9 = 675/756
3. Likewise, for the 2nd fraction, since 54 × 14 = 756,
   12/54 = 12 × 14/54 × 14 = 168/756
4. Add the two like fractions:
   675/756 + 168/756 = 675 + 168/756 = 843/756
5. 843/756 simplified gives 281/252
6. So, 75/84 + 12/54 = 281/252
   In mixed form: 129/252

MathStep (Works offline)

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

Related: ⁷⁵/₈₄+²⁴/₅₄ ⁷⁵/₈₄+³⁶/₅₄ ⁷⁵/₈₄+⁶⁰/₅₄ ⁷⁵/₈₄+⁸⁴/₅₄

Add Fractions Calculator