Question

va roggg b si i
pana la ora 16 va roggg
ofer coroană ​

Answer 1

Răspuns:

b)10/7 i) +5/8

Explicație pas cu pas:

b)(4/7)*(5/2)=(4*5)/(7*2)=(2*5)/7=10/7

i)(-15/32)*(-4/3)=(-15*(-4))/(32*3)=5/8

Answer 2

Explicație pas cu pas:

$\frac{4}{7} \times \frac{5}{2} = \frac{2 \times \not 2}{7} \times \frac{5}{\not 2} = \frac{2 \times 5}{7} = \frac{10}{7}$

$\left( - \frac{15}{32}\right) \times \left( - \frac{4}{3}\right) = \frac{\not 3 \times 5}{\not 4 \times 8} \times \frac{\not 4}{\not 3} = \frac{5}{8}$