Answers

Add 3/30 and 84/81

1^st number: 3/30, 2^nd number: 1 3/81

3/30 + 84/81 is 307/270.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 81 is 810
   
   Next, find the equivalent fraction of both fractional numbers with denominator 810
2. For the 1st fraction, since 30 × 27 = 810,
   3/30 = 3 × 27/30 × 27 = 81/810
3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
   84/81 = 84 × 10/81 × 10 = 840/810
4. Add the two like fractions:
   81/810 + 840/810 = 81 + 840/810 = 921/810
5. 921/810 simplified gives 307/270
6. So, 3/30 + 84/81 = 307/270
   In mixed form: 137/270

MathStep (Works offline)

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

Related: ⁶/₃₀+⁸⁴/₈₁ ³/₆₀+⁸⁴/₈₁ ⁹/₃₀+⁸⁴/₈₁ ³/₉₀+⁸⁴/₈₁ ¹⁵/₃₀+⁸⁴/₈₁ ²¹/₃₀+⁸⁴/₈₁

Add Fractions Calculator