Question

me ajuda por favor aperta em cima da foto que eu mandei


⚠urgente ⚠​

Answer 1

Explicação passo-a-passo:

7) a)

$\frac{16}{25} \times \frac{15}{8} = \frac{2}{5} \times \frac{3}{1} = \frac{6}{5}$

b)

$\frac{10}{14} \times \frac{49}{9} = \frac{10}{2} \times \frac{7}{2} = \frac{70}{4}$ = 35/2

c)

$\frac{7}{3} \times \frac{18}{4} = \frac{7}{1} \times \frac{6}{4} = \frac{42}{4} = \frac{21}{2}$

d)

$\frac{20}{50} \times \frac{15}{4} = \frac{5}{10} \times \frac{3}{1} = \frac{15}{10} = \frac{3}{2}$

8)

$8 \times \frac{3}{4} = \frac{24}{4} = 6$

6 kg

Answer 2

Resposta:

a) 240/200 = 120/100 = 60/50 = 30/25 = 6/5

b)490/126 = 245/63 = 35/9

c)126/12 = 63/6 = 21/2

d)300/200 = 150/100 = 75/50 = 15/10 = 3/2