Answers

Add 3/84 and 36/81

3/84 + 36/81 is 121/252.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 81 is 2268
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2268
2. For the 1st fraction, since 84 × 27 = 2268,
   3/84 = 3 × 27/84 × 27 = 81/2268
3. Likewise, for the 2nd fraction, since 81 × 28 = 2268,
   36/81 = 36 × 28/81 × 28 = 1008/2268
4. Add the two like fractions:
   81/2268 + 1008/2268 = 81 + 1008/2268 = 1089/2268
5. 1089/2268 simplified gives 121/252
6. So, 3/84 + 36/81 = 121/252

MathStep (Works offline)

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

Related: ⁶/₈₄+³⁶/₈₁ ³/₈₄+⁷²/₈₁ ⁹/₈₄+³⁶/₈₁ ¹⁵/₈₄+³⁶/₈₁ ²¹/₈₄+³⁶/₈₁

Add Fractions Calculator