Question

13/20-3/10
estimate:
closer to 1 or 0?

Answer 1

`(13)/(20)<(14)/(20) =(7)/(10)\ \ \ and\ \ \ (13)/(20)>(12)/(20)=(6)/(10)\\ \\(6)/(10)<(13)/(20) <(7)/(10)\ \ \ \Rightarrow\ \ \ (6)/(10)-(3)/(10)<(13)/(20)-(3)/(10) <(7)/(10)-(3)/(10)\\ \\ (3)/(10) <(13)/(20)-(3)/(10) <(4)/(10)\\ \\Ans.\ (13)/(20)-(3)/(10) \ is\ closer\ to\ 0`

Answer 2

So, what you need to is find the decimal or percent of them. So 13/20 is 65% or .65. You get that buy multiplying it by 5 to get the denominator of 100. A denominator can go up to 100. 13/20 is closer to 1 because 65% is closer to 100% than 0%. Next 3/10 is 30%. Do that by multiplying it by 10 to get the denominator of 100. 30% is closer to 0 than 100%. Subtract them. 1-0= 1. The answer is 1.