Question

Which rational number is equivalent to the expression 69 2/9 - (-12 4/9)?

Answer 1

81 2/3

Explanation:

69 2/9 - ( - 12 4/9)

= 69 2/9 + 12 4/9

Add the whole parts to get 69 + 12 = 81

Add the fractional parts: 2/9 + 4/9 = 6/9 = 2/3

So
69 2/9 - (-12 4/9) = 81 2/3