Question

Tính nhanh

43,8 :\(\frac{5}{12}\)+43,8 * 7,6

Answer 1

Ta có : \(43,8:\frac{5}{12}+43,8\times7,6\)

\(=43,8\times\frac{12}{5}+43,8\times\frac{38}{5}\)

\(=\left(\frac{12}{5}+\frac{38}{5}\right)\times43,8\)

\(=43,8\times\frac{50}{5}\)

\(=43,8\times10=438\)

Answer 2

=43,8*12/5+43,8*7,6

=43,8*(12/5+7,6)

=43,8*(2,4+7,6)

=43,8*10

=438

hok tot