Question

Oleg made a fraction number line to help him find 4 x2/5

Answer 1

Answer with explanation:

To find ,
`4* (2)/(5)`

we will first mark,
`(2)/(5)` on the number line, and then move,
`(2)/(5)`, 4 times in right of number line.

To draw ,
`(2)/(5)` on the number line, mark 0,1,2,3,....on the number line.Mark four line segments at equal distance between 0 and 1 , which is equivalent to ,
`(1)/(5),(2)/(5),(3)/(5),(4)/(5),(5)/(5)=1,........`.

Now, mark circle on
`0, (2)/(5),(4)/(5),(6)/(5),(8)/(5)`,

Which gives
`4* (2)/(5)=(8)/(5)=1 (3)/(5)`.

Answer 2

The easiest way to find the number on a number line is to first multiply and then use it as a mixed number. Mixed numbers are generally easier to place on a number line than multiplication or improper fractions.

4 * 2/5 = 8/5 = 1 and 3/5

Since we have the mixed number of 1 and 3/5 we know we can go just past halfway between 1 and 2 on the number line.