Question

3 7/19:1 1/2 = 2 3/8:0,8 X​

Answer 1

Ответ:

Это пропорция:

$3\frac{7}{19} : 1\frac{1}{2} = 2\frac{3}{8} : 0.8x$

$3\frac{7}{19}*0.8x=1\frac{1}{2}*2\frac{3}{8}$

$\frac{64}{19}*\frac{8}{10}x= \frac{3}{2}*\frac{19}{8}$

$\frac{512}{190}x=\frac{57}{16}$

$x=\frac{57}{16}/\frac{512}{190}$

$x=\frac{5415}{4096}$

$x=1\frac{1319}{4096}$

Пошаговое объяснение:

Answer 2

To solve the expression "3 7/19 ÷ 1 1/2 = 2 3/8 ÷ 0.8," you can follow these steps:

Step 1: Convert mixed numbers to improper fractions.

• 3 7/19 as an improper fraction is (3 * 19 + 7) / 19 = 64/19.
• 1 1/2 as an improper fraction is (1 * 2 + 1) / 2 = 3/2.
• 2 3/8 as an improper fraction is (2 * 8 + 3) / 8 = 19/8.

Step 2: Perform the division on both sides of the equation.

• (64/19) ÷ (3/2) = (19/8) ÷ 0.8.

Step 3: Divide fractions.

• (64/19) ÷ (3/2) = (64/19) * (2/3) = (128/57).
• (19/8) ÷ 0.8 = (19/8) ÷ (8/10) = (19/8) * (10/8) = (190/64).

Now the equation is (128/57) = (190/64).

Step 4: Simplify both sides.

• Divide both sides by their greatest common divisor (GCD) to simplify:

• (128/57) ÷ 2 = (190/64) ÷ 2.

• (64/57) = (95/64).

So, the simplified equation is (64/57) = (95/64).

The fractions on both sides of the equation are not equal, so the original equation "3 7/19 ÷ 1 1/2 = 2 3/8 ÷ 0.8" is not true.