Question

Tính hợp lý

a) \(\dfrac{6}{8}\)+\(\dfrac{-19}{18}\)+\(\dfrac{-9}{12}\)
b) \(24+\left(-12\right).47.2-4.54.6\)

 

Answer 1

a: =3/4-19/18-3/4

=-19/18

b: =24-24x47-24x54

=24(1-47-54)

=24x(-100)=-2400

Answer 2

a) \(=\dfrac{-19}{18}\)

b) \(=-2400\)

Answer 3

a:=-19/18

b: -2400

Answer 4

a: =3/4-19/18-3/4

=-19/18

b: =24-24x47-24x54

=24(1-47-54)

=24x(-100)=-2400

 

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