Answers

Add 81/30 and 6/63

1^st number: 2 21/30, 2^nd number: 6/63

81/30 + 6/63 is 587/210.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 30 × 21 = 630,
   81/30 = 81 × 21/30 × 21 = 1701/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   6/63 = 6 × 10/63 × 10 = 60/630
4. Add the two like fractions:
   1701/630 + 60/630 = 1701 + 60/630 = 1761/630
5. 1761/630 simplified gives 587/210
6. So, 81/30 + 6/63 = 587/210
   In mixed form: 2167/210

MathStep (Works offline)

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

Related: ⁸¹/₃₀+¹²/₆₃ ⁸¹/₆₀+⁶/₆₃ ⁸¹/₃₀+¹⁸/₆₃ ⁸¹/₉₀+⁶/₆₃ ⁸¹/₃₀+³⁰/₆₃ ⁸¹/₃₀+⁴²/₆₃

Add Fractions Calculator