Question

11.
. va roggggg mult !!!​

Answer 1

Răspuns:

a) $\frac{1}{60}$

b) $\frac{45}{2}$

Explicație pas cu pas:

a) $\frac{4}{25} : \frac{16}{5} - \frac{11}{10} : \frac{33}{2} =$

$\frac{4}{25}*\frac{5}{16} - \frac{11}{10} * \frac{2}{33} =$

simplificam 4 cu 16, 25 cu 5, 11 cu 33 si 10 cu 2

$\frac{1}{5} *\frac{1}{4} -\frac{1}{5} * \frac{1}{3} =$

$\frac{1}{20} - \frac{1}{15} =$

amplificam 1/20 cu 3 si 1/15 cu 4

$\frac{3}{60} - \frac{4}{60} =$

$\frac{4-3}{60} =$$\frac{1}{60}$

b) $1\frac{6}{11}:\frac{3}{44} - \frac{5}{27} :\frac{10}{9}=$

$\frac{17}{11} * \frac{44}{3} - \frac{5}{27} * \frac{9}{10} =$

simplificam 11 cu 44, 5 cu 10 si 9 cu 27

$17*\frac{4}{3} -\frac{1}{3} * \frac{1}{2} =$

$\frac{68}{3} - \frac{1}{6}=$

amplificam 68/3 cu 2

$\frac{136}{6} - \frac{1}{6} =$

$\frac{136-1}{6} =$

$\frac{135}{6} =$

simplificam 135 cu 6

$\frac{45}{2}$