Question

2/5х=3,1/5 6,1/3-2,2/3=

Answer 1

Х=3 1/5:2/5=16/5×5/2=сокращает =8
х=8

Answer 2

It seems like you have provided two separate equations involving fractions. Let's solve them step by step:

1. Equation 1: $\frac{2}{5}x = \frac{31}{5}$

To solve for $x$, you need to isolate $x$ on one side of the equation. You can do this by multiplying both sides of the equation by the reciprocal of $\frac{2}{5}$, which is $\frac{5}{2}$:

$\frac{5}{2} \cdot \frac{2}{5}x = \frac{5}{2} \cdot \frac{31}{5}$

Simplifying:

$x = \frac{155}{10}$ $x = 15.5$

So, the solution for Equation 1 is $x = 15.5$.

2. Equation 2: $6\frac{1}{3} - 2\frac{2}{3}$

To subtract mixed fractions, you first need to convert them to improper fractions, then perform the subtraction. Here's how you can do it:

$6\frac{1}{3} = 6 + \frac{1}{3} = \frac{18}{3} + \frac{1}{3} = \frac{19}{3}$

$2\frac{2}{3} = 2 + \frac{2}{3} = \frac{6}{3} + \frac{2}{3} = \frac{8}{3}$

Now, subtract the second fraction from the first:

$6\frac{1}{3} - 2\frac{2}{3} = \frac{19}{3} - \frac{8}{3} = \frac{11}{3}$

You can leave the answer as an improper fraction, or if you want a mixed number:

$6\frac{1}{3} - 2\frac{2}{3} = 3\frac{2}{3}$

So, the result of Equation 2 is $3\frac{2}{3}$ or $\frac{11}{3}$.