Answers

Add 9/84 and 7/8

9/84 + 7/8 is 55/56.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 8 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 84 × 2 = 168,
   9/84 = 9 × 2/84 × 2 = 18/168
3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
   7/8 = 7 × 21/8 × 21 = 147/168
4. Add the two like fractions:
   18/168 + 147/168 = 18 + 147/168 = 165/168
5. 165/168 simplified gives 55/56
6. So, 9/84 + 7/8 = 55/56

MathStep (Works offline)

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

Related: ¹⁸/₈₄+⁷/₈ ⁹/₈₄+¹⁴/₈ ⁹/₈₄+⁷/₁₆ ²⁷/₈₄+⁷/₈ ⁹/₈₄+²¹/₈ ⁹/₈₄+⁷/₂₄ ⁴⁵/₈₄+⁷/₈ ⁹/₈₄+³⁵/₈ ⁹/₈₄+⁷/₄₀ ⁶³/₈₄+⁷/₈ ⁹/₈₄+⁴⁹/₈ ⁹/₈₄+⁷/₅₆

Add Fractions Calculator