Question

vă rog mai repede
dau coronaa ​

Answer 1

a)  $\frac{6}{8}$ + $\frac{1}{4}$ (amplificam cu 2) = $\frac{6}{8}$ + $\frac{2}{8}$ = $\frac{10}{8}$ (simplificam cu 2) = $\frac{5}{4}$

b) $\frac{12}{6}$ ( amplificam cu 7) + $\frac{1}{7}$ (amplificam cu 6) = $\frac{84}{42}$ + $\frac{6}{42}$ = $\frac{90}{42}$ (simplificam cu 2)

   = $\frac{45}{21}$ ( simplificam cu 3) = $\frac{15}{7}$

c)  $\frac{3}{3}$ (amplificam cu 13)- $\frac{12}{13}$ (amplificam cu 3) = $\frac{39}{39}$ + $\frac{36}{39}$ = $\frac{75}{39}$ (simplificam cu 3) = $\frac{25}{13}$

d) $\frac{4}{3}$ (amplificam cu 11)- $\frac{11}{11}$ (amplificam cu 3) = $\frac{44}{33} - \frac{33}{33}$ = $\frac{10}{33}$

Mult succes! Coronita? :)