Question

1/4(1/7+1/9)
ayuda porfa​

Answer 1

$\frac{1}{4} ( \frac{9}{63} + \frac{7}{63} ) = \frac{1}{4} ( \frac{16}{63} ) = \frac{16}{252} = \frac{8}{126} = \frac{4}{63}$