Question

What is the value of -12.7

Answer 1

`-12.7`

Express it as:

`-(12.7)/(1)`

Multiply by 10 the numerator and the denominator:

`-(12.7)/(1)*(10)/(10)=-(127)/(10)`

so:

`-12.7=-(127)/(10)`

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For a mixed number, we can use the following formula:

`a(b)/(c)=(ac+b)/(c)`

So:

`11(1)/(4)=(11\cdot4+1)/(4)=(44+1)/(4)=(45)/(4)`