Răspuns:
a) [tex]\frac{118-11}{90} -\frac{12}{10} =\frac{107}{90} -\frac{12}{10} =\frac{107}{90} -\frac{108}{90} =\frac{1}{90}[/tex]
d) [tex]\frac{5}{10} +\frac{3}{9} +\frac{5}{10} *\frac{3}{9} =\frac{5}{10} +\frac{3}{9} +\frac{15}{90} =\frac{45}{90} +\frac{30}{90}+ \frac{15}{90} =\frac{90}{90} =1[/tex]
Explicație pas cu pas:
