Answers

Add 63/28 and 81/8

1^st number: 2 7/28, 2^nd number: 10 1/8

63/28 + 81/8 is 99/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 8 is 56
   
   Next, find the equivalent fraction of both fractional numbers with denominator 56
2. For the 1st fraction, since 28 × 2 = 56,
   63/28 = 63 × 2/28 × 2 = 126/56
3. Likewise, for the 2nd fraction, since 8 × 7 = 56,
   81/8 = 81 × 7/8 × 7 = 567/56
4. Add the two like fractions:
   126/56 + 567/56 = 126 + 567/56 = 693/56
5. 693/56 simplified gives 99/8
6. So, 63/28 + 81/8 = 99/8
   In mixed form: 123/8

MathStep (Works offline)

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

Related: ⁶³/₅₆+⁸¹/₈ ⁶³/₂₈+⁸¹/₁₆ ⁶³/₈₄+⁸¹/₈ ⁶³/₂₈+⁸¹/₂₄ ⁶³/₂₈+⁸¹/₄₀ ⁶³/₂₈+⁸¹/₅₆

Add Fractions Calculator