Answers

Add 28/42 and 45/84

28/42 + 45/84 is 101/84.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 84 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 42 × 2 = 84,
   28/42 = 28 × 2/42 × 2 = 56/84
3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
   45/84 = 45 × 1/84 × 1 = 45/84
4. Add the two like fractions:
   56/84 + 45/84 = 56 + 45/84 = 101/84
5. So, 28/42 + 45/84 = 101/84
   In mixed form: 117/84

MathStep (Works offline)

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

Related: ⁵⁶/₄₂+⁴⁵/₈₄ ²⁸/₄₂+⁹⁰/₈₄ ²⁸/₈₄+⁴⁵/₈₄ ⁸⁴/₄₂+⁴⁵/₈₄

Add Fractions Calculator