Question

[Thang Thị Phương Thảo]

4.4+5.6+6.6+7.8+8.6+9.3+3.1 

-----------------------------------------=?

                   40                            

Answer 1

[Ng Bao Nam]

     \(\frac{\text{4.4+5.6+6.6+7.8+8.6+9.3+3.1 }}{40} \)

= \(\frac{16+30+36+56+48+27+3}{40}\)

=  \(\frac{216}{40}\)

=  \(\frac{27}{5}\)