Question

va rog ajutatima ex 87 va rog!!!!​

Answer 1

Răspuns:

a)

$( \frac{19}{8} + \frac{79}{24} ) \div ( \frac{14}{3} - \frac{9}{8}) = \\ \frac{57 + 79}{24} \times \frac{24}{112 - 27} = \\ \frac{136}{85} = 1 \frac{51}{85}$

b)

$( \frac{28}{5} - \frac{4}{3} ) \div ( \frac{91}{12} - \frac{9}{4} ) = \\ \frac{84 - 20}{15} \times \frac{12}{91 - 27} = \\ \frac{64}{15} \times \frac{12}{64} = \frac{12}{15} = \frac{4}{5}$

Answer 2

Răspuns:

acesta este răspunsul. seara buna