15. Scrieți ca fracție numărul: a) 24 3. b) 3 2. 4. 11' 3 3 c) 6, c 5 d) 12. 6

Răspuns:
[tex]2\frac{3}{4} =\frac{2*4+3}{4} =\frac{11}{4} \\\\3\frac{2}{11} =\frac{3*11+2}{11} =\frac{35}{11} \\\\6\frac{3}{7} =\frac{6*7+3}{7} =\frac{45}{7} \\\\12\frac{5}{6} =\frac{12*6+5}{6} =\frac{77}{6}[/tex]