Question

Calcule:

A) 5/6 ÷ 4/5 =

B) 1/2 ÷ 3/4 =

C) 3/2 X 5/1 =

D) 8/3 X 4/2 =

2°) Calcule as operações a seguir:

A) 3,5 x 4,1=

B) 2,6 x 5=

c) 2,31 x 1,22=
por favor me ajudem ​

Answer 1

$1)a) \frac{5}{6} \div \frac{4}{5} =$

$\frac{5}{6} \times \frac{5}{4} =$

$\boxed{ \frac{25}{24} }$

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$b) \frac{1}{2} \div \frac{3}{4} =$

$\frac{1}{2} \times \frac{4}{3} =$

$\frac{4}{6} =$

$\frac{4 \div 2}{6 \div 2} =$

$\boxed{ \frac{2}{3} }$

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$c) \frac{3}{2} \times \frac{5}{1} =$

$\frac{3 \times 5}{2 \times 1} =$

$\boxed{ \frac{15}{2} }$

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$d) \frac{8}{3} \times \frac{4}{2} =$

$\frac{8}{3} \times 2 =$

$\frac{8}{3} \times \frac{2}{1} =$

$\frac{8 \times 2}{3 \times 1} =$

$\boxed{ \frac{16}{3} }$

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$2)a)3,5 \times 4,1 =$

$\boxed{14,35}$

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$b)2,6 \times 5 =$

$\boxed{13}$

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$c)2,31 \times 1,22 =$

$\boxed{2,8182}$

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Att, IzabelaCristina2006 ❤️ ♈