Answers

Add 81/8 and 56/90

1^st number: 10 1/8, 2^nd number: 56/90

81/8 + 56/90 is 3869/360.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 90 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 8 × 45 = 360,
   81/8 = 81 × 45/8 × 45 = 3645/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   56/90 = 56 × 4/90 × 4 = 224/360
4. Add the two like fractions:
   3645/360 + 224/360 = 3645 + 224/360 = 3869/360
5. So, 81/8 + 56/90 = 3869/360
   In mixed form: 10269/360

MathStep (Works offline)

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

Related: ⁸¹/₁₆+⁵⁶/₉₀ ⁸¹/₂₄+⁵⁶/₉₀ ⁸¹/₄₀+⁵⁶/₉₀ ⁸¹/₅₆+⁵⁶/₉₀

Add Fractions Calculator