Question

(1.25-1 1/3)*(-5 1/7 )-1 1/6: 5 4/9​

Answer 1

Ответ:

1)1,25-1 1/3=-1/12

2)-1/12×(-5 1/7)=3/7

3)1 1/6÷5 4/9=3/14

4)3/7-3/14=3/14

как то так

Answer 2

Пошаговое объяснение:

$(\frac{5}{4} - \frac{11}{3} )( - \frac{36}{7} ) - \frac{11}{6} \div \frac{4}{9} = \\ = ( \frac{29}{12} ) \times( - \frac{36}{7} ) - \frac{33}{8} = - \frac{87}{7} - \frac{33}{8} = \\ = \frac{927}{56}$

Answer 3

To solve the expression (1.25 - 1 1/3) * (-5 1/7) - 1 1/6 ÷ 5 4/9, we'll follow the order of operations (PEMDAS/BODMAS), which stands for Parentheses/Brackets, Exponents/Orders, Multiplication and Division, and Addition and Subtraction.

Step 1: Convert mixed numbers to improper fractions. 1 1/3 = (3 + 1) / 3 = 4 / 3 5 1/7 = (7 + 5) / 7 = 12 / 7 1 1/6 = (6 + 1) / 6 = 7 / 6 5 4/9 = (9 + 5) / 9 = 14 / 9

Step 2: Perform the operations inside the parentheses. (1.25 - 4/3) * (-12/7) - 7/6 ÷ 14/9

Step 3: Perform the subtraction and multiplication operations. 1.25 - 4/3 = 1.25 - 1.33333... ≈ -0.08333...

(-0.08333...) * (-12/7) = 0.07142857...

Step 4: Perform the division operation. 7/6 ÷ 14/9 = (7/6) * (9/14) = 3/4 ≈ 0.75

Step 5: Perform the final subtraction operation. 0.07142857... - 0.75 ≈ -0.678571...

So, the result of the expression is approximately -0.678571... or -0.68 when rounded to two decimal places.