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a)

[tex]( - \frac{4}{3}) \times ( - \frac{5}{8} + \frac{1}{4} ) [/tex]

[tex]( - \frac{4}{3} ) \times ( - \frac{3}{8} )[/tex]

[tex] \frac{1}{2} [/tex]

d)

[tex]0.75 \times ( - \frac{7}{3} + \frac{5}{6} )[/tex]

[tex] \frac{3}{4} \times ( - \frac{3}{2}) [/tex]

[tex] - \frac{9}{8} [/tex]

Răspuns:

Explicație pas cu pas:

primul mod

= -4/3*(-5/8) - 1/4*4/3

= se simplifica   .....4 cu 4

= 20/24- ⁸⁾1/3

=20/24-8/24

= 12⁽¹²/24¹²

= 1/2

-

al doilea mod

=-4/3*(-5/8+²⁾1/4)

= -4/3*(-5/8+2/4)

=-4/3*(-3/8)

= se simplifica 4 cu 8 ramane 2 si 3 cu 3

=1/2

-

= 75/100 *(-7/3) + 75/100 *5/6

=se simplifica 75 cu 100 prin 25

= 3/4*(-7/3) +3/4*5/6

= se simplifica 3 cu 3

=-7/4 + 3/4*5/6

= -²⁾7/4+5/8

= -14/8+5/8

= -9/8

-

-

75/100*(-²⁾7/3+5/6)

=3/4*(-14/6+5/6)

=3/4*( -9/6)

=se simplifica 3 cu 6 (ramane 2)

= -9/4*2

=-9/8