a) [tex] \frac{2}{7} + \frac{7}{7} = \frac{9}{7} [/tex]
b) [tex] \frac{8}{11}+ \frac{5}{11} = \frac{13}{11} [/tex]
c) [tex] \frac{33}{18} - \frac{10}{18} = \frac{23}{18} [/tex]
d) [tex] \frac{11}{4} - \frac{10}{4} = \frac{1}{4} [/tex]
e)[tex] \frac{7}{12} - \frac{7}{12} = 0 [/tex]
f) [tex]3 - \frac{3}{4} = \frac{12}{4} - \frac{3}{4} = \frac{9}{4} [/tex]
Aici l-am amplificat pe 3 cu 4 si mi-a dat 12 supra 4.
g) [tex] \frac{9}{10} - \frac{6}{10} = \frac{3}{10} [/tex]
h) [tex] \frac{22}{13} - \frac{7}{13} = \frac{15}{13} [/tex]
