Question

tinh gia tri bieu thuc

198,06-5,9x6;3/5:5/7+3/8

Answer 1

198,06-5,9x6

= 198,06 - 35,4

= 162,66

3/5 : 5/7 + 3/8

=21/25 +3/8

= 243/200

= 1,215

 

Answer 2

Answer 3

\(198,06-5,9\times6:\dfrac{3}{5}:\dfrac{5}{7}+\dfrac{3}{8}\)

\(=198,06-35,4:0,6:\dfrac{5}{7}+\dfrac{3}{8}\)

\(=198,06-59:\dfrac{5}{7}+\dfrac{3}{8}=198,06-82,6+0,375\)

\(=115,46+0,375=115,835\)

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