Answers

Add 1/42 and 54/84

1/42 + 54/84 is 2/3.

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,
   1/42 = 1 × 2/42 × 2 = 2/84
3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
   54/84 = 54 × 1/84 × 1 = 54/84
4. Add the two like fractions:
   2/84 + 54/84 = 2 + 54/84 = 56/84
5. 56/84 simplified gives 2/3
6. So, 1/42 + 54/84 = 2/3

MathStep (Works offline)

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

Related: ²/₄₂+⁵⁴/₈₄ ¹/₈₄+⁵⁴/₈₄ ³/₄₂+⁵⁴/₈₄ ⁵/₄₂+⁵⁴/₈₄ ⁷/₄₂+⁵⁴/₈₄

Add Fractions Calculator