Question

DAU COROANA

2. Calculați: îmi trebuie numa a) b) c) d)​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

4 1/2:2/3

4 1/2=9/2

9/2*3/2=27

am folosit

a:b=1*(1/b)

b) 7/12*16/49=4/21

c)5*4/5=4

d) 8/3: 7/3=(8/3) * 3/7=8/7

Answer 2

Răspuns:

$\frac{4*2+1}{2} *\frac{3}{2} =\frac{9*3}{4} =\frac{27}{4} \\\\\frac{7}{12} :\frac{3*16+1}{16} =\frac{7}{12} *\frac{16}{49} =\frac{4}{21} \\\\5:\frac{1*4+1}{4} =\frac{5}{1} *\frac{4}{5} =4\\\\\frac{2*3+2}{3} :\frac{2*3+1}{3} =\frac{8}{3} *\frac{3}{7} =\frac{8}{7}$