Question

- 1,5 : 0,5* ( 3 8/15 - 4 1/18 - 1 1/5)

Answer 1

-1,5÷0,5*((3 8/15)-(4 1/18)-(1 1/5))=-1,5÷0,5*(-47/90-6/5)=-3*(-31/18)=31/6=

=5 1/6=5,1(6)

Answer 2

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$- 1.5 \div 0.5 \times( \frac{53}{15} - \frac{72}{18} - \frac{6}{5} ) = \\ = - \frac{3}{2} \div \frac{1}{2} \times ( - \frac{31}{18} ) = \\ = \frac{1}{2} \times 2 \times \frac{31}{6} = \frac{31}{6}$
Готово)
Ответ: 31/6
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Answer 3

To solve the expression, follow these steps:

Step 1: Convert mixed numbers to improper fractions. Step 2: Perform the operations inside the parentheses. Step 3: Subtract the results. Step 4: Multiply the final result by 0.5.

Let's begin:

Step 1: Convert mixed numbers to improper fractions 3 8/15 = (3 * 15 + 8) / 15 = 53 / 15 4 1/18 = (4 * 18 + 1) / 18 = 73 / 18 1 1/5 = (1 * 5 + 1) / 5 = 6 / 5

Step 2: Perform the operations inside the parentheses (53/15 - 73/18 - 6/5)

Step 3: Find the common denominator (least common multiple) for 15, 18, and 5, which is 90.

Step 4: Rewrite the fractions with the common denominator: (53/15) = (53 * 6) / (15 * 6) = 318 / 90 (73/18) = (73 * 5) / (18 * 5) = 365 / 90 (6/5) = (6 * 18) / (5 * 18) = 108 / 90

Step 5: Perform the subtraction inside the parentheses (318/90 - 365/90 - 108/90) = (-155/90)

Step 6: Multiply the result by 0.5 -1.5 * (-155/90) = 1.5 * (155/90) = 2.58333333333...

So, the final result is approximately 2.583.