Question

A=\(\dfrac{34,4x6,34+3,66x34,4}{17,2x9,55+12,45x17,2-17,2}\)

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Answer 1

Lời giải:

\(A=\frac{34,4\times (6,34+3,66)}{17,2\times (9,55+12,45-1)}=\frac{34,4\times 10}{17,2\times 21}=\frac{344}{361,2}=\frac{20}{21}\)