Question

Найдите значение выражения 4- ( 41/84 - 5/21 ) + 7 11/30 .

Answer 1

4- ( 41/84 - 5/21 ) + 7 11/30=4-(41-5*4)/84+7 11/30=4-21/84+7 11/30=4-1/4+7 11/30=11-1/4+11/30=11+(-15+22)/60=11+7/60=11 7/60

Answer 2

$4-( frac{41}{84} -frac{5}{21})+7 frac{11}{30} =4- frac{41-5*4}{84} +frac{7*30+11}{30} =4- frac{21}{84} +frac{221}{30} =$$4- frac{1}{4} +frac{221}{30} = frac{60*4-15*1+221*2}{60} = frac{667}{60}$$=11 frac{7}{60}$

Answer 3

Спасибо

Answer 4

пожалуйста))