Answers

Add 8/90 and 81/30

1^st number: 8/90, 2^nd number: 2 21/30

8/90 + 81/30 is 251/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 30 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 90 × 1 = 90,
   8/90 = 8 × 1/90 × 1 = 8/90
3. Likewise, for the 2nd fraction, since 30 × 3 = 90,
   81/30 = 81 × 3/30 × 3 = 243/90
4. Add the two like fractions:
   8/90 + 243/90 = 8 + 243/90 = 251/90
5. So, 8/90 + 81/30 = 251/90
   In mixed form: 271/90

MathStep (Works offline)

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

Related: ¹⁶/₉₀+⁸¹/₃₀ ⁸/₉₀+⁸¹/₆₀ ²⁴/₉₀+⁸¹/₃₀ ⁸/₉₀+⁸¹/₉₀ ⁴⁰/₉₀+⁸¹/₃₀ ⁵⁶/₉₀+⁸¹/₃₀

Add Fractions Calculator