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Question

a) 25.9-25.17/-8.80-8.10                   b)48.12-48.15/-3.270-3.30                          c) 2^5.7+2^5/2^5.5^2-2^5.3                         d) 3^4.5-3^6/3^4.13+3^4

 

Answer 1

a)= 25.(9-17)/-8.(80-10)

=25.(-8)/-8. 70)

=25/70=5/14

b)=48.(12-15)/-3.(370-30)

=48.(-3)/-3.340

=48/340=12/85

c)=25.7+25.1/25.52-25.3

=25.(7+1)/25.(52-3)

=25.8/25.49

=8/49

 

 

Answer 2

a)= 25.(9-17)/-8.(80-10)

=25.(-8)/-8. 70)

=25/70=5/14

b)=48.(12-15)/-3.(370-30)

=48.(-3)/-3.340

=48/340=12/85

c)=25.7+25.1/25.52-25.3

=25.(7+1)/25.(52-3)

=25.8/25.49

=8/49

Answer 3

ket qua bang cua a,b

a=635/128

b=-768/185