Question

5 1/4*(12-0,4)-3 3/4*(-0,4-24)=

Answer 1

Ответ смотри на фото.

Answer 2

To solve the given expression, let's first convert the mixed numbers to improper fractions and then perform the calculations step by step:

Step 1: Convert the mixed numbers to improper fractions 5 1/4 = (5 * 4 + 1) / 4 = 21/4 3 3/4 = (3 * 4 + 3) / 4 = 15/4

Step 2: Perform the calculations within parentheses: (12 - 0.4) = 11.6 (-0.4 - 24) = -24.4

Step 3: Substitute the results into the expression: 21/4 * 11.6 - 15/4 * (-24.4)

Step 4: Perform the multiplication: (21/4) * 11.6 = 50.05 (15/4) * (-24.4) = -92.5

Step 5: Perform the subtraction: 50.05 - (-92.5) = 50.05 + 92.5 = 142.55

So, the final result of the expression is 142.55.