Question

(4) -1#3/4-[1/2-(3/4+1/2-1#3/8)+5/8]-|||-(5) 4.4+[(-0.1)+8#1/3+(-11#2/3)

Answer 1

问：(4) -1#3/4-[1/2-(3/4+1/2-1#3/8)+5/8]-|||-(5) 4.4+[(-0.1)+8#1/3+(-11#2/3)

答：亲，您好，首先，我们需要计算括号内的表达式。 1. 计算括号内的加法和减法： 3/4 + 1/2 = 6/8 + 4/8 = 10/8 = 5/4 5/4 - 1#3/8 = 5/4 - 11/8 = 10/8 - 11/8 = -1/8 2. 计算括号内的加法和减法： -0.1 + 8#1/3 = -0.1 + 8/3 = -0.1 + 24/10 = -0.1 + 2.4 = 2.3 -11#2/3 = -11/3 接下来，我们需要计算整个表达式。 1. 计算乘法和除法： -1#3/4 = -1 * 3/4 = -3/4 4.4 + (-0.1) = 4.4 - 0.1 = 4.3 -11#2/3 = -11/3 2. 计算括号内的加法和减法： 1/2 - (3/4 + 1/2 - 1#3/8) + 5/8 = 1/2 - (-1/8) + 5/8 = 4/8 + 1/8 + 5/8 = 10/8 = 5/4 3. 计算整个表达式： -1#3/4 - [1/2 - (3/4 + 1/2 - 1#3/8) + 5/8] = -3/4 - 5/4 = -8/4 = -2 4.4 + [(-0.1) + 8#1/3 + (-11#2/3)] = 4.3 + (-11/3) = 4.3 - 11/3 = (4.3 * 3 - 11) / 3 = (12.9 - 11) / 3 = 1.9 / 3 = 19/30 最终结果为：-2 - (5/4) - (19/30) = -2 - 1.25 - 0.6333 = -3.8833