Question

me ajudem por favor :)))

Answer 1

a) 9 . 9/7 = 9.9/7 = 81/7

b) 7 . 4/7 = 7.4/7 = 28/7 = 4

c) 7/4 . 2 = 7.2/4 = 14/4 = 7/2

d) 2 . 5/6 = 2.5/6 = 10/6 = 5/3

e) 4 . 5 . 3/7 = 4.5.3/7 = 60/7

f) 2 . 3/8 . 4 = 2.3.4/8 = 24/8 = 3

Answer 2

Oi!!
Vamos lá:

$a) 9. \frac{9}{7}$

Multiplica 9.9

$\frac{9.9}{7}$

$\frac{81}{7}$

$b) 7. \frac{4}{7}$

$\frac{7.4}{7}$

$\frac{28}{7}$

$4$

$c) \frac{7}{4} . 2$

$\frac{7.2}{4}$

$\frac{14}{4}$

$Ou:$

$3,5$

$d) 2. \frac{5}{6}$

$\frac{2.5}{6}$

$\frac{10}{6}$

$e) 4.5. \frac{3}{7}$

$4.5= 20$

$\frac{20.3}{7}$

$\frac{60}{7}$

$f) 2. \frac{3}{8} .4$

$\frac{2.3.4}{8}$

$\frac{6.4}{8}$

$\frac{24}{8}$

$3$

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