Question

What is the answer to 15 and 18? pls help it will mean a lot:)

Answer 1

Answer and Step-by-step explanation:

15.
`-(27)/(20)` or
`-1(7)/(20)`

-1.35 = -135/100 =
`-1(35)/(100)` (Mixed number)

Multiply the number by 100, then divide the number by 100 (but keep it in fraction form).

-1.35 x 100 = -135

`-(135)/(100)` =
`-(27)/(20)`

(Mixed Fraction = . To check, multiply the 20 by the 1, then add 7, to get -27/20)

18.
`(49)/(11)` or
`4(5)/(11)`

4.45 = 49/11 =
`4(5)/(11)`

4.4545.....

Multiply the number by 100 (because there is 2 numbers being repeated.

445.4545....

Now subtract by the original number.

445.4545....

- 4.4545....

441.00

Write this as an equation:

(100 x fraction) - fraction = 441 (100 x fraction) - fraction = 99 x fraction

99 x fraction = 441 (Divide both sides by 99)

fraction =
`(441)/(99)` (which simplifies down to
`(49)/(11)`)

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