Question

calculati : a) 7+3 supra 4-0.7
b) 5*1.2+1 supra 2 +2 supra 5
c) 15+7 supra 10
VA ROG , NU SUNT SIGURA DACA E BUN CUM AM FACUT EU !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

$\frac{7+3}{4-0,7}= \frac{10}{3,3} = \frac{10*10}{33}= \frac{100}{33}=3 \frac{1}{33}=3,0303$
$5*1,2+ \frac{1}{2}+ \frac{2}{5}=6+ \frac{1}{2}+ \frac{2}{5}= \frac{60+5+4}{10} = \frac{69}{10}=6 \frac{9}{10}=6,9$
$\frac{15+7}{10}= \frac{22}{10}= \frac{11}{5}= 2\frac{1}{5} =2,2$
Succes.