Question

pfvr me ajudem! eh pra agr!! FRAÇÕES

a) 6/5 x 5/9

b) 14/8 x 4/49

c) 12 x 2/9

d) 2/5 x 3/2 x 6/7 x 7/4

e) 25/3 x 7 x 9/14 x 2

f) 45/4 x 8/9

g) 9/8 x 4/45 x 25/3

h) 2/3 x 11/6 x 4/33

Answer 1

a)6/5 × 5/9=2/3
b)14/8 ×4/49=1/7
c)12 × 2/9 =8/3
d)2/5× 3/2×6/7×7/4=9/10
e)25/3×7×9/14×2=75
f)45/4× 8/9=10
g)9/8×4/45×25/3=5/6
h)2/3×11/6×4/33=4/27

Answer 2

Muito bem!

$a) \frac{6}{5} \times \frac{5}{9} = \frac{30}{45} = \frac{6}{9} = \frac{2}{3}$

$b) \frac{14}{8} \times \frac{4}{49} = \frac{56}{392} = \frac{1}{7}$

$c)12 \times \frac{2}{9} = \frac{24}{9} = \frac{8}{3}$

$d) \frac{2}{5} \times \frac{3}{2} \times \frac{6}{7} \times \frac{7}{4} = \frac{252}{280} = \frac{63}{70}$ = 9/10

$e) \frac{25}{3} \times 7 \times \frac{9}{14} \times 2 = \frac{3150}{42} = 75$

$f) \frac{45}{4} \times \frac{8}{9} = \frac{360}{36} = 10$

$g) \frac{9}{8} \times \frac{4}{45} \times \frac{25}{3} = \frac{900}{1080} = \frac{75}{90} = \frac{15}{18} = \frac{5}{6}$

$h) \frac{2}{3} \times \frac{11}{6} \times \frac{4}{33} = \frac{88}{594}$