AMC8 1991

AMC8 1991 · Q2

AMC8 1991 · Q2. It mainly tests Fractions.

$\frac{16 + 8}{4 - 2} =$

$\frac{16 + 8}{4 - 2} = $

(A) 4 4

(B) 8 8

(D) 16 16

(E) 20 20

Answer

Correct choice: (C)

正确答案：（C）

Solution

Using the standard order of operations, first simplify the numerator and then the denominator. Finally compute the quotient: $(16 + 8) / (4 - 2) = 24 / 2 = 12$. Note. Keying $16 \div 8 + 4 - 2$ on the calculator will give an incorrect answer for this problem. The problem means $(16 + 8) \div (4 - 2) = 24 \div 2 = 12$.

使用标准的运算顺序，先化简分子然后分母，最后计算商：$(16 + 8) / (4 - 2) = 24 / 2 = 12$。注意。在计算器上输入 $16 \div 8 + 4 - 2$ 会得到错误答案。这个问题意思是 $(16 + 8) \div (4 - 2) = 24 \div 2 = 12$。

Topics

AR.001 Fractions