Question

Calcule e responda.

A) +20/3) : (+10) =

B) (+32/5) : (-1,6) =

C) (21/8) : (35/4) =

Answer 1

A) (+20/3) : (+10) =

20/3 × 1/10

20 × 1/3 × 10

20/30 = 2/3

B) (+32/5) : (-1,6) =

32/5 × 1/-1.6

32 × 1/5 × (-1.6)

-32/8 = -4

C) (21/8) : (35/4) =

21 × 4/8 × 35

84/280 = 3/10

Answer 2

Explicação passo-a-passo:

$a) \frac{20}{3} \div 10 = \frac{20}{3} \times \frac{1}{10} = \frac{20}{30} = \frac{2}{3}$

$b) \frac{32}{5} \div \frac{}{} - 1.6 = \frac{32}{5} \div \frac{ - 16}{10} = \frac{32}{5} \times \frac{10}{ - 16} = \frac{320}{ - 80} = - 4$

$c) \frac{21}{8} \div \frac{35}{4} = \frac{21}{8} \times \frac{4}{35} = \frac{84}{280} = \div \frac{4}{4} = \frac{21}{70} \div \frac{7}{7} = \frac{3}{10}$