Question

Tính bằng cách thuận tiện nhất

0,9 × 15 × 1,5 

_______________________=

3 × 4 + 3

 

Answer 1

\(\frac{\left(0,9.15.1,5\right)}{3.4+3}\)

\(=\frac{\left(3.5.0,9.1,5\right)}{3.\left(4+1\right)}\)

\(=\frac{\left(3.5.0,9.1,5\right)}{3.5}\)

\(=0,9.1,5=\frac{27}{20}\)

Chúc  em học tốt^^

Answer 2

\(\frac{\left(0,9.15.1,5\right)}{3.4+3}\)

\(=\frac{\left(3.5.0,9.1,5\right)}{3.\left(4+1\right)}\)

\(=\frac{\left(3.5.0,9.1,5\right)}{3.5}\)

\(=0,9.1,5=\frac{27}{20}\)

Chúc  em học tốt^^

Answer 3

\(\frac{\left(0,9.15.1,5\right)}{3.4+3}\)

\(=\frac{\left(3.5.0,9.1,5\right)}{3.\left(4+1\right)}\)

\(=\frac{\left(3.5.0,9.1,5\right)}{3.5}\)

\(=0,9.1,5=\frac{27}{20}\)

Chúc  em học tốt^^