Question

URGENTE ME AJUDEM PFVR ESTOU DANDO O MAXIMO DE PONTOS PRA QM RESPONDER

Answer 1

Resposta:

1)

a) $\frac{8}{10} = \frac{12}{15} = \frac{16}{20} = \frac{20}{25} = \frac{24}{30}$

b) $\frac{14}{6} = \frac{21}{9} = \frac{28}{12} = \frac{35}{15} = \frac{42}{18}$

c) $\frac{4}{18} = \frac{6}{27} = \frac{8}{36} = \frac{10}{45} = \frac{12}{54}$

d) $\frac{14}{8} = \frac{21}{12} = \frac{28}{16} = \frac{35}{20} = \frac{42}{24}$

e) $\frac{6}{20} = \frac{9}{30} = \frac{12}{40} = \frac{15}{50} = \frac{18}{60}$

f) $\frac{16}{12} = \frac{24}{18} = \frac{32}{24} = \frac{40}{30} = \frac{48}{36}$

2)

a) $\frac{5}{9}$

b) $\frac{3}{7}$

c) $\frac{3}{10}$

d) $\frac{7}{11}$

3)

a) $\frac{5}{2}$

b) $\frac{7}{3}$

c) $\frac{27}{5}$

d) $\frac{7}{4}$

e) $\frac{71}{10}$

f) $\frac{99}{8}$

4)

a) $6\frac{1}{2}$

b) $6\frac{2}{3}$

c) $4\frac{2}{10}$

d) $1\frac{12}{13}$

5)

a) $\frac{1}{6}$

b) $\frac{1}{3}$

c) $\frac{1}{2}$

Explicação passo-a-passo:

1) Basta multiplicar os numeradores e denominadores por quaisquer números inteiros diferentes de zero. Pra facilitar, vou multiplicar por 2, 3, 4, 5 e 6.

a) $\frac{4}{5} = \frac{8}{10} = \frac{12}{15} = \frac{16}{20} = \frac{20}{25} = \frac{24}{30}$

b) $\frac{7}{3} = \frac{14}{6} = \frac{21}{9} = \frac{28}{12} = \frac{35}{15} = \frac{42}{18}$

c) $\frac{2}{9} = \frac{4}{18} = \frac{6}{27} = \frac{8}{36} = \frac{10}{45} = \frac{12}{54}$

d) $\frac{7}{4} = \frac{14}{8} = \frac{21}{12} = \frac{28}{16} = \frac{35}{20} = \frac{42}{24}$

e) $\frac{3}{10} = \frac{6}{20} = \frac{9}{30} = \frac{12}{40} = \frac{15}{50} = \frac{18}{60}$

f) $\frac{8}{6} = \frac{16}{12} = \frac{24}{18} = \frac{32}{24} = \frac{40}{30} = \frac{48}{36}$

2)

a) $\frac{10^{~ /2}}{18^{~/2}} = \frac{5}{9}$

b) $\frac{9^{~/3}}{21^{~/3}} = \frac{3}{7}$

c) $\frac{15^{~/5}}{50^{~/5}} = \frac{3}{10}$

d) $\frac{49^{~/7}}{77^{~/7}} = \frac{7}{11}$

3)

a) $2\frac{1}{2} = \frac{4}{2}+\frac{1}{2} = \frac{5}{2}$

b) $2\frac{1}{3} = \frac{6}{3} +\frac{1}{3} = \frac{7}{3}$

c) $5\frac{2}{5} = \frac{25}{5} + \frac{2}{5} = \frac{27}{5}$

d) $1\frac{3}{4} = \frac{4}{4} + \frac{3}{4} = \frac{7}{4}$

e) $7\frac{1}{10} = \frac{70}{10} + \frac{1}{10} = \frac{71}{10}$

f) $12\frac{3}{8} = \frac{96}{8} + \frac{3}{8} = \frac{99}{8}$

4)

a) $\frac{13}{2} = \frac{12}{2} + \frac{1}{2} = 6\frac{1}{2}$

b) $\frac{20}{3} = \frac{18}{3} + \frac{2}{3} = 6\frac{2}{3}$

c) $\frac{42}{10} = \frac{40}{10} + \frac{2}{10} = 4\frac{2}{10}$

d) $\frac{25}{13} = \frac{13}{13} + \frac{12}{13} = 1\frac{12}{13}$

5)

a) Como são 6 triângulos, $\frac{1}{6}$.

b) Como o losango é representado por 2 triângulos, $\frac{2}{6} = \frac{1}{3}$.

c) Como o trapézio é representado por 3 triângulos, $\frac{3}{6} = \frac{1}{2}$.