Question

Estimate 6 8 9 ( 1 9 10 ) by rounding to the nearest whole number. The estimate is the actual product because

Answer 1

First box: 14

Second box: greater than

Third box: both factors were rounded up.

Explanation:

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Answer 2

`6(8)/(9) (1(9)/(10)) = 13`

Explanation:

Given

`6(8)/(9) (1(9)/(10))`

Required

Estimate

To do this; we start by converting both fractions to improper fraction

`6(8)/(9) (1(9)/(10))`

`(62)/(9) (1(9)/(10))`

`(62)/(9) ((19)/(10))`

Open Bracket

`(62)/(9) * (19)/(10)`

Combine to form a single fraction

`(62 * 19)/(9 * 10)`

Multiply numerators and denominators

`(1178)/(90)`

Convert fraction to decimal

`13.0888888889`

Approximate to nearest whole number

`13`

Hence,
`6(8)/(9) (1(9)/(10)) = 13`