Question

Tính 17/45 + 23/45 + 28/45 + 1/27 + 26/27 + 22/45 =

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Answer 1

\(\frac{17}{45}+\frac{13}{45}+\frac{28}{45}+\frac{1}{27}+\frac{26}{27}+\frac{22}{45}\)

= \(\left(\frac{17}{45}+\frac{28}{45}\right)+\left(\frac{1}{27}+\frac{26}{27}\right)+\left(\frac{23}{45}+\frac{22}{45}\right)\)

=            1             +             1           +         1

=                                         3

Answer 2

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