Question

(-3,4+7)•(-1 7/18) (6 2/9•5 5/6):(-7/36)

Answer 1

$( - 3.4 + 7) \times ( - 1 \frac{7}{18} ) = 3.6 \times ( - \frac{25}{18} ) = \frac{18}{5} \times ( - \frac{25}{18}) = - 5$

$(6 \frac{2}{9} \times 5 \frac{5}{6} ) \div ( \frac{ - 7}{36} ) = ( \frac{56}{9} \times 5 \times \frac{5}{6} ) \div \frac{ - 7}{36} = ( \frac{28}{9} \times 5 \times \frac{5}{3} ) \div \frac{ - 7}{36} = \frac{700}{27} \div \frac{ - 7}{36} = - \frac{700}{27} \times \frac{36}{7} = - \frac{100}{3} \times 4 = - \frac{400}{3}$

Answer 2

Let's break down the expression step by step:

1. First, calculate the value inside the parentheses: (-3,4+7) = -3,11

2. Next, convert the mixed numbers to improper fractions: -1 7/18 = -25/18 6 2/9 = 56/9 5 5/6 = 35/6

3. Multiply the fractions inside the parentheses: (-25/18) * (56/9) * (35/6)

4. To multiply fractions, you multiply the numerators together and the denominators together: (-25 * 56 * 35) / (18 * 9 * 6)

5. Calculate the products in the numerator and denominator: (-25 * 56 * 35) = -49000 (18 * 9 * 6) = 972

6. Divide the numerator by the denominator: -49000 / 972 ≈ -50.4115 (rounded to four decimal places)

So, the result of the expression is approximately -50.4115.