35 x 3/4 + 45,5 x 75/100 + 20,5 x 75% - 0,75

= 35 x 0,75 + 45,5 x 0,75 + 20,5 x 0,75 - 0,75 x 1

= ( 35 + 45,5 + 20,5 - 1 ) x 0,75

= 100 x 0,75

= 75

75/100 + 3/4 x 29 + 75% x 30 + 0,75 x 40

= 0,75 + 0,75 x 29 + 0,75 x30 + 0,75 x 40

= 0,75 x ( 1 + 29 + 30 + 40 )

= 0,75 x 100

=75

\(\frac{75}{100}+\frac{3}{4}\times29+75\%\times30+0,75\times40\)

\(=\frac{75}{100}\times1+\frac{3\times25}{4\times25}\times29+\frac{75}{100}\times30+\frac{0,75}{1}\times40\)

\(=\frac{75}{100}\times1+\frac{75}{100}\times29+\frac{75}{100}\times30+\frac{0,75\times100}{1\times100}\times40\)

\(=\frac{75}{100}\times1+\frac{75}{100}\times29+\frac{75}{100}\times30+\frac{75}{100}\times40\)

\(=\frac{75}{100}\left(1+29+30+40\right)\)

\(=\frac{75}{100}\times100\)

\(=\frac{75}{100}\times\frac{100}{1}\)

\(=\frac{75}{1}\)

\(=75\)

\(=\frac{75\times100}{100\times1}\)

18,75+17,25+15,75+14,25+5,25+3,75+2,25

75/100+75%.2+3/4.3+0.75.4

=3/4+3/4.2+3/4.3+3/4.4

=3/4.(1+2+3+4)

=3/4.10

=15/2

=75/100+75/100x2+75/100x3 +75/100 x4

=75/100x(1+2+3+4)

= 75/100x10

=15/2

hok tot

thank you mọi người nha

\(\dfrac{75}{100}\) + 0,75 x 29 + 75% x 30 + \(\dfrac{3}{4}\) x 40

= 0,75 x 1 + 0,75 x 29 + 0,75 x 30 + 0,75 x 40

= 0,75 x (1 + 29 + 30 + 40)

= 0,75 x 100

= 75

\(\frac{75}{100}+\frac{3}{4}\times29+75\%\times30+0,75\times40\)

\(=0,75+0,75\times29+\frac{75}{100}\times30+0,75\times40\)

\(=0,75\times1+0,75\times29+0,75\times30+0,75\times40\)

\(=0,75\times\left(1+29+30+40\right)\)

\(=0,75\times100\)

\(=75\)

Khó

=3/4.0,25+3/4.1,25-3/4.0,5

=3/4.(0,25+1,25-0,5)

=3/4.10

=15/2

`3/4.0,25+3/4.1,25-3/4.0,5`

`=3/4.(0,25+1,25-0,5)`

`=3/4xx10=15/2`

=3/4x(0,25+1,25-0,5)=3/4x10=15/2

0,75 = \(\frac{3}{4}\)

\(\frac{4}{3}\) x 2011 x \(\frac{3}{4}\)

= \(\frac{4}{3}\) x \(\frac{3}{4}\) x 2011

= 1 x 2011 

= 2011