Question

(2,04 - 1 1/4) : 1/20 =?

Answer 1

Ответ:15,8
..............

Answer 2

Ответ:

Пошаговое объяснение:

(2,04-1 1/4):1/20=(2,04-1,25):0,05=0,79:0,05=15,8

2 4/100-1 1/4=204/100-5/4=204/100-125/100=79/100

79/100:1/20=79/100*20/1=79/5=15 4/5=15,8

Answer 3

Let's solve the expression step by step:

Step 1: Convert the mixed number to an improper fraction. 1 1/4 can be written as (4 * 1 + 1) / 4 = 5 / 4.

Step 2: Perform the subtraction. 2.04 - 1 1/4 = 2.04 - 5/4.

Step 3: Convert the decimal 2.04 to a fraction. 2.04 can be written as 2 04/100 = 2 1/25.

Step 4: Now, we have (2 1/25) - (5/4).

Step 5: Convert both fractions to have the same denominator, which is 100. (2 1/25) = (2 * 25 + 1) / 25 = 51/25.

Step 6: Perform the subtraction with the common denominator. (51/25) - (5/4).

Step 7: Find a common denominator between 25 and 4, which is 100. Multiply the first fraction by 4/4 and the second fraction by 25/25: (51/25) * (4/4) - (5/4) * (25/25) = 204/100 - 125/100.

Step 8: Perform the subtraction with the common denominator. (204/100) - (125/100) = (204 - 125) / 100 = 79 / 100.

Step 9: Now, divide the result by 1/20. (79/100) : (1/20).

Step 10: Invert the divisor (reciprocal) and perform the division. (79/100) * (20/1) = (79 * 20) / (100 * 1) = 1580 / 100 = 15.8.

Therefore, (2.04 - 1 1/4) : 1/20 = 15.8.