\(\frac{84}{100}-\frac{29}{100}+\frac{30}{100}=\frac{85}{100}=\frac{17}{20}\)

85793-36841+3826=52778

325.97+86.54+103.46=515.97

+) = 17/20

+) = 53138

+) = 515,97

tk mk nha!

84/100 - 29/100 + 30/100=17/20

85793 - 36841 + 3826=53138

325,97 + 86,54 + 103,46=515,97

a) 85793  36841 + 3826 = 48952 + 3826 = 52778

b) \(\dfrac{84}{100}-\dfrac{29}{100}+\dfrac{30}{100}\) =  \(\dfrac{55}{100}+\dfrac{30}{100}\) = \(\dfrac{85}{100}\) =\(\dfrac{17}{20}\) 

c) 325,97 86,54  103,46 = 412,51 + 103,46 = 515,97

a)\(85793-36841+3826=52778\)

b)\(\dfrac{84}{100}-\dfrac{29}{100}+\dfrac{30}{100}=\dfrac{84-29+30}{100}=\dfrac{85}{100}\)

c)\(325,97+86,54+103,46=515,97\)

a) 85793  36841 + 3826 = 48952 + 3826 = 52778

b) 55100+3010055100+30100 = 17201720 

c) 325,97 86,54  103,46 = 412,51 + 103,46 = 515,97

b, 53 + 45 + 135 + 147 + 50

= ( 53 + 147 ) + ( 45 + 135 ) + 50

= 200 + 180 + 50

= 200 + 330

= 530

b, 53 + 45 + 135 + 147 + 50

=(53+147)+(45+135+50)

=200+230

=430

a)85793-36841+3826=62778

b)84/100-29/100+30/100=85/100=17/50

c)325,97+86,54+103,46=515,97

d)1/2+1/3+1/4+1/5=30+20+14+12/60=76/60=19/14

1/2+1/3+1/4+1/5

mơn trc nha!!!

59

59

200

400

29+30=59                        30+29=59

100+100=200                    200+200=400

29+30=59                    30+29=59

100+100 =200                   200+200=400

   \(\dfrac{25}{100}\) + \(\dfrac{1}{4}\) x 29 + 25% \(\times\) 30 + 0,25 \(\times\) 40

= 0,25+ 0,25 x 29 + 0,25 x 30 + 0,25 x 40

= 0,25 x ( 1 + 29 + 30 + 40)

= 0,25 x 100

= 25

 \dfrac{25}{100}10025​ + \dfrac{1}{4}41​ x 29 + 25% $\times$ 30 + 0,25 $\times$ 40

= 0,25+ 0,25 x 29 + 0,25 x 30 + 0,25 x 40

= 0,25 x ( 1 + 29 + 30 + 40)

= 0,25 x 100

= 25

134 x 100 + 250 x 100 – 84 x100.

= 100 x (134 + 250 – 84)

= 100 x 300

= 30 000

= ( 75 : 100 ) + ( 3: 4 ) + ( 75 : 100 ) x 29 x 30 + 0,75 x 40

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

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

= 0,75 x 100

= 75

tham khảo:

= ( 75 : 100 ) + ( 3: 4 ) + ( 75 : 100 ) x 29 x 30 + 0,75 x 40

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

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

= 0,75 x 100

= 75

75

\(\dfrac{75}{100}+\dfrac{3}{4}\times29+75\%\times30+0,75\times40\\ =\dfrac{75}{100}\times1+\dfrac{75}{100}\times29+\dfrac{75}{100}\times30+\dfrac{75}{100}\times40\\ =\dfrac{75}{100}\times\left(1+29+30+40\right)\\ =\dfrac{75}{100}\times100=75\)

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