Question

fração equivalente 8/10, 5/8 , 18/21, 9/21 , 9/12, 6/10

Answer 1

8/10: 4/5
5/8: 1/4
18/21: 9/7
9/21: 3/7
9/12: 3/6
6/10: 3/5

Answer 2

$\dfrac{8}{10} \ \dfrac{\div}{\div} \ \dfrac{2}{2} => \dfrac{4}{5}$

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$\dfrac{5}{8} \ \dfrac{*}{*} \ \dfrac{2}{2} => \dfrac{10}{16}$

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$\dfrac{18}{21} \ \dfrac{\div}{\div} \ \dfrac{3}{3} => \dfrac{6}{7}$

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$\dfrac{9}{21} \ \dfrac{\div}{\div} \ \dfrac{3}{3} => \dfrac{3}{7}$

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$\dfrac{9}{12} \ \dfrac{\div}{\div} \ \dfrac{3}{3} => \dfrac{3}{4}$

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$\dfrac{6}{10} \ \dfrac{\div}{\div} \ \dfrac{2}{2} => \dfrac{3}{5}$