Question

Tính bằng cách thuận tiện nhất

9x8x15 / 12x6x5

Answer 1

\(\text{Ta có: }\frac{9x8x15}{12x6x5}=\frac{3x4x3}{4x3x1}=3\)

Answer 2

\(\frac{9.8.15}{12.6.5}=\frac{3.3.3}{4.3.1}=\frac{3.1.3}{4.1.1}=\frac{9}{4}\)

Answer 3

\(=\frac{3.3.4.2.3.5}{4.3.2.3.5}=3\)

k mk nha

Answer 4

=3^4.2^3.5/3^2.2^3.5=3^2

Answer 5

9x8x15/12x6x5=3x3x4x2x5x3/4x3x3x2x5=3/1=3

Answer 6

\(\frac{9.8.15}{12.6.5}=\frac{3.3.3}{4.3.1}=\frac{3.1.3}{4.1.1}=\frac{9}{4}\)

Ai k mk mk k lại!

Answer 7

=3*3*2*4*3*5/3*4*2*3*5

=3

Answer 8

=3*3*2*4*3*5/3*4*2*3*5

=3

Answer 9

\(\frac{9x8x15}{12x6x5}=\frac{3x3x4x2x3x5}{4x3x2x3x5}=3\)

Answer 10

= 3 nha

Answer 11

\(\frac{9\times8\times15}{12\times6\times5}=\frac{3\times3\times2\times4\times3\times5}{4\times3\times2\times3\times5}=3\)

Answer 12

3x3x4x2x3x5/3x4x2x3x5=3