Question

вычеслите:Две целых 1/3+4 целых 1/10 разделить на (2 целых 7/16-6/12)×1 целых 1/4 пж​

Answer 1

$2\frac{1}{3}+4\frac{1}{10}:(2\frac{7}{16} -\frac{6}{12} )*1\frac{1}{4} = ?$

1)  $2\frac{7}{16} -\frac{6}{12} = \frac{39}{16} -\frac{6}{12} = \frac{39*3-6*4}{48} = \frac{117-24}{48} = \frac{93}{48} =\frac{31}{16}$

2)  $4\frac{1}{10} :\frac{31}{16} =\frac{41}{10} *\frac{16}{31} =\frac{328}{155}$

3)  $\frac{328}{155} *1\frac{1}{4}= \frac{328}{155} *\frac{5}{4} =\frac{328*5}{155*4} =\frac{82}{31}$

4)  $2\frac{1}{3} +\frac{82}{31}= \frac{7}{3} +\frac{82}{31}= \frac{7*31+3*82}{93} =\frac{463}{93}= 4\frac{91}{93}$

Ответ:  $4\frac{91}{93}$