Question

(3 1/4+5,5)•(0,2-1/70)​A. 1 4/5B. 1 5/8C. 1D. 1 3/8E. 1 2/5

Answer 1

Ответ:

Ответ этой задачи: В. 1 5/8

Answer 2

Let's solve the given expression step by step:

First, simplify the expressions inside the parentheses:

1. $3 \frac{1}{4} + 5.5 = \frac{13}{4} + \frac{22}{4} = \frac{35}{4}.$
2. $0.2 - \frac{1}{70} = \frac{20}{100} - \frac{1}{70} = \frac{14}{70} - \frac{1}{70} = \frac{13}{70}.$

Now, multiply the two results:

$\frac{35}{4} \cdot \frac{13}{70} = \frac{455}{280} = \frac{65}{40} = \frac{13}{8}.$

Now, let's convert the improper fraction $\frac{13}{8}$ to a mixed number:

$\frac{13}{8} = 1 \frac{5}{8}.$

So, the answer is $B. 1 \frac{5}{8}$.