Question

BOA NOITE QUEM PODE ME AJUDAR MATEMATICA 7º ANO

3/2=1/3X6/5=

3/11X1/5+2=

1/2:6+5/12=

Answer 1

a) $\frac{3}{2} \times \frac{1}{3} \times \frac{6}{5} = \frac{18}{30} \div \frac{6}{6} = \frac{3}{5}$
b) $\frac{3}{11} \times \frac{1}{5} + 2 = \frac{3}{55} + 2 =$ $\frac{3}{55} + \frac{110}{55} = \frac{113}{55}$
c)$\frac{1}{2} : \frac{6}{1} + \frac{5}{12} = \frac{1}{2} * \frac{1}{6} + \frac{5}{12} = \frac{1}{12} + \frac{5}{12} = \frac{6}{12} = \frac{1}{2}$