Răspuns:
Explicație pas cu pas:
7) b) (2 1/2)/4 = x/(1 3/4) <=>
(5/2)/4 = x/(7/4) =>
x = (5/2 · 7/4) :4 =>
x = 35/8 · 1/4 =>
x = 35/32
d) (3/8) /(2/5) = x/(1 2/3) <=>
(3/8)·(5/2) = x/(5/3) <=>
15/16 = x·3/5 =>
x = (15·5)/(16·3) =>
x = 25/16
