Question

2+1/3+1/2:2-1/3-1/2 7:5-0,1:5-0.1:7

Answer 1

Ответ:

Пошаговое объяснение:

2+1/3+1/2:2-1/3-1/2 =2+1/2*1/2-1/2=2+1/4-1/2=7/4=1 3/4

7:5-0,1:5-0.1:7 =1,4-0,02-1/10*1/7=1,38-1/70=69/50-1/70=239/175=1 64/175

Answer 2

Пошаговое объяснение:

2+1/3+1/2:2-1/3-1/2=

=2+1/2:2-1/2=

=2+1/2*1/2-1/2=

=2+1/4-1/2=

=7/4 = 1,75

Answer 3

Let's solve each expression step by step:

1. $2 + \frac{1}{3} + \frac{1}{2} : 2 - \frac{1}{3} - \frac{1}{2}$

First, we perform the operations inside the parentheses: $2 + \frac{1}{3} + \frac{1}{2} = \frac{12}{6} + \frac{2}{6} + \frac{3}{6} = \frac{17}{6}$

Next, we perform the division: $\frac{17}{6} : 2 = \frac{17}{6} \times \frac{1}{2} = \frac{17}{12}$

Finally, we perform the remaining subtractions: $\frac{17}{12} - \frac{1}{3} - \frac{1}{2} = \frac{17}{12} - \frac{4}{12} - \frac{6}{12} = \frac{7}{12}$

So, $2 + \frac{1}{3} + \frac{1}{2} : 2 - \frac{1}{3} - \frac{1}{2} = \frac{7}{12}$

2. $7 : 5 - 0.1 : 5 - 0.1 : 7$

First, we perform the divisions: $7 : 5 = 1.4$ $0.1 : 5 = 0.02$ $0.1 : 7 \approx 0.014285714$

Now, we perform the subtractions from left to right: $1.4 - 0.02 - 0.014285714 \approx 1.365714286$

So, $7 : 5 - 0.1 : 5 - 0.1 : 7 \approx 1.365714286$

Please note that I've rounded the result in the second expression to several decimal places. If you need a more precise answer, you can keep more decimal places in your calculations.