Обчислите:6,25*3,4=0,0017*7,8=32,291*100=24,1:1000=48,24:12=7:28=7,31:3,4=18:0,45=

Решите задачу:

$6,25*3,4= \frac{625}{100} * \frac{34}{10} = \frac{21250}{1000} =\frac{2125}{100} =21,25$

$0,0017*7,8= \frac{17}{10000} * \frac{78}{10} = \frac{1326}{100000}=0,01326$

$32,291*100= \frac{32291}{1000} *100=\frac{32291}{10} *1=3229,1$

$24,1:1000= \frac{241}{10} :1000=\frac{241}{10} * \frac{1}{1000} = \frac{241}{10000} =0,0241$

$48,24:12= \frac{4824}{100} :12=\frac{4824}{100}* \frac{1}{12} =\frac{402}{100}* 1 =4,02$

$7:28=7* \frac{1}{28} =1* \frac{1}{4} = \frac{1}{4} =0,25$

$7,31:3,4= \frac{731}{100} : \frac{34}{10} =\frac{731}{100} * \frac{10}{34} =\frac{43}{100} * \frac{10}{2}=\frac{43}{100} *5= \frac{215}{100} =2,15$

$18:0,45=18: \frac{45}{100} =18* \frac{100}{45} =18* \frac{20}{9} =2*20 =40$