Calculate the decimal number and smallest reduced fraction for ...

[azncindy619]

Calculate the decimal number and smallest reduced fraction for 65.
 
  1. 0.35; 7/20
  2. 0.45; 9/20
  3. 0.55; 11/20
  4. 0.65; 13/20

Question 2

Calculate 0.25 x 1.47 and round to the nearest tenth decimal place.
 
  1. 0.4
  2. 0.37
  3. 0.365
  4. 0.375

[ansleighelindsey]

Answer to Question 1

4

Rationale 1: To convert percentages to a fraction place the value of the percent in the numerator and the 100 as the denominator. For 65 this would be 65/100. Reduce this number further by dividing by 5 to determine the smallest fraction as being 13/20. To determine the decimal number begin again by placing 65 as the numerator and 100 as the denominator or 65/100. Since the denominator is 100, the number has 2 decimal points or 0.65.

Answer to Question 2

1

Rationale 1: When multiplying 0.25 by 1.47 begin by first calculating 25 x 147 = 3675. Then count the total number of decimal places which is 4. From the number 5, count back four spaces or 0.3675. Next, look at the number and determine the tenth decimal place. This is the number 3. The next number to 3 is 6 which is greater than 5. This means that the number can be rounded up to 4. The correct answer is 0.4.