Question

0,8 : 4 - 1/50 решите пж

Answer 1

Ответ:

9/50 альтернативное решение- 0,18

Answer 2

To solve the expression 0.8 ÷ 4 - 1/50, follow these steps:

Step 1: Simplify the division (0.8 ÷ 4). Step 2: Convert 0.8 to a fraction with a common denominator as 50. Step 3: Subtract the two fractions.

Step 1: 0.8 ÷ 4 = 0.8 / 4 = 0.2

Step 2: To convert 0.8 to a fraction with a denominator of 50, multiply both the numerator and denominator by 50: 0.8 * (50/50) = 40/50

Step 3: Now, we can subtract the two fractions: 0.2 - 40/50

Since the fractions have different denominators, we need to find a common denominator. The least common multiple (LCM) of 50 and 50 is 50 itself.

Now, rewrite 0.2 as a fraction with a denominator of 50: 0.2 * (50/50) = 10/50

Now, we have: 10/50 - 40/50 = (10 - 40)/50 = -30/50

The result is -30/50, which can be simplified further. Divide both the numerator and denominator by their greatest common divisor (GCD), which is 10:

(-30 ÷ 10) / (50 ÷ 10) = -3/5

So, the solution to the expression 0.8 ÷ 4 - 1/50 is -3/5.