Răspuns:
1)
[tex]1 - \frac{1}{2 } = \frac{1}{2} [/tex]
2)
[tex] \frac{1}{2} \times \frac{1}{2} = \frac{1 \times 1}{2 \times 2} = \frac{1}{4} [/tex]
3)
[tex]2 + \frac{1}{4 } = \frac{9}{4} = 2 \frac{1}{4} [/tex]
4)
[tex] \frac{1}{2} \times 2 \frac{1}{4} = \frac{1}{2} \times \frac{9}{4} = \frac{1 \times 9}{2 \times 4} = \frac{9}{8} = 1 \frac{1}{8} [/tex]
5)
[tex]2 - 1 \frac{1}{8} = \frac{7}{8} [/tex]
6)
[tex] \frac{1}{2} \times \frac{7}{8} = \frac{1 \times 7}{2 \times 8} = \frac{7}{16} [/tex]
7)
[tex]2 + \frac{7}{16} = \frac{39}{16} = 2 \frac{7}{16} [/tex]
Rezultatul final :
[tex]2 \frac{7}{16} [/tex]
