Question

Nassim completed 18/25 of the math homework. Kara completed 0.7 of it. Debbie completed 5/8 of it. List the numbers in order from greatest to least.

Answer 1

18/25 = 1.39

.7
5/8 = .63


They are now in order from greatest to least.
Think of the amounts as money:
$1.39
$0.70
$0.63

Answer 2

`(18)/(25)`,
`(7)/(10)`,
`(5)/(8)`.

Explanation:

We have been given that Nassim completed 18/25 of the math homework. Kara completed 0.7 of it. Debbie completed 5/8 of it. We are asked to list the numbers in order from greatest to least.

We will compare our given fraction by making a common denominator.

`0.7=(7)/(10)`

We know that least common multiple of denominator fractions:
`(18)/(25)`,
`(7)/(10)` and
`(5)/(8)` is 200.

Let us make a common denominator.

`(18*8)/(25*8)=(144)/(200)`

`(7*20)/(10*20)=(140)/(200)`

`(5*25)/(8*25)=(125)/(200)`

Greatest to least:

`(18)/(25)`,
`(7)/(10)`,
`(5)/(8)`.