Answers

Add 1/84 and 54/8

1^st number: 1/84, 2^nd number: 6 6/8

1/84 + 54/8 is 142/21.

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,
   1/84 = 1 × 2/84 × 2 = 2/168
3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
   54/8 = 54 × 21/8 × 21 = 1134/168
4. Add the two like fractions:
   2/168 + 1134/168 = 2 + 1134/168 = 1136/168
5. 1136/168 simplified gives 142/21
6. So, 1/84 + 54/8 = 142/21
   In mixed form: 616/21

MathStep (Works offline)

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

Related: ²/₈₄+⁵⁴/₈ ¹/₈₄+⁵⁴/₁₆ ³/₈₄+⁵⁴/₈ ¹/₈₄+⁵⁴/₂₄ ⁵/₈₄+⁵⁴/₈ ¹/₈₄+⁵⁴/₄₀ ⁷/₈₄+⁵⁴/₈ ¹/₈₄+⁵⁴/₅₆

Add Fractions Calculator