a)
[tex] \frac{56}{17} \div \frac{18}{35} \div \frac{42}{128} = \frac{56}{17} \times \frac{35}{18} \times \frac{128}{42} = \frac{14}{5} \times \frac{5}{9} \times \frac{128}{3} = \frac{256}{3} [/tex]
și
[tex] \frac{56}{17} \div ( \frac{18}{35} \times \frac{42}{128} ) = \frac{56}{17} \div \frac{189}{1120} = \frac{56}{17} \times \frac{1120}{189} = \frac{62720}{3213} [/tex]
a doua e mai mare
