Question

3 3/4 : (2 4 /7 - 1 1/12) решите подробно ,плииз

Answer 1

$3 frac{3}{4} : (2 frac{4}{7} -1 frac{1}{12} )=2frac{13}{25}\ 1)2 frac{4}{7} -1 frac{1}{12}=2 frac{4*12}{7*12} -1 frac{1*7}{12*7} =2 frac{48}{84} -1 frac{7}{84} =1 frac{41}{84} \ 2)3 frac{3}{4} :1 frac{41}{84} =frac{15}{4} : frac{125}{84} =frac{15}{4}* frac{84}{125} =frac{3*5}{4}* frac{21*4}{25*5} =frac{3}{1}* frac{21}{25} = frac{63}{25} = 2frac{13}{25}$