Question

Me ajudem.....
67) Caucule
A) 4/5:2/3
B) 4/9:6/5
C) 1/4:7/3
D)2/7:1/5
E)8/7:9_2
F)5:2/3
G)1/10:1/10
H)6/7:5
I)3 1/2:4/7
J)4/5:1 1/2

Answer 1

Resposta:

$a) \frac{4}{5} \times \frac{3}{2} = \frac{12}{10} \frac{ \div 2}{ \div 2} = \frac{6}{5 } \\ b) \frac{4}{9} \times \frac{5}{6} = \frac{20}{54} \frac{ \div 2}{ \div 2} = \frac{10}{27} \\ c) \frac{1}{4} \times \frac{3}{7} = \frac{3}{28 } \\ d) \frac{2}{7} \times \frac{5}{1} = \frac{10}{7} \\ e) \frac{8}{7} \times \frac{2}{9} = \frac{16}{63} \\ f)5 \times \frac{3}{2} = \frac{15}{2} \\ g) \frac{1}{10} \times \frac{10}{1} = \frac{10}{10} = 1 \\ h) \frac{6}{7} \times \frac{1}{5} = \frac{6}{35} \\ i) \frac{7}{2} \times \frac{7}{4} = \frac{49}{8} \\ j) \frac{4}{5 } \times \frac{2}{3} = \frac{8}{15}$