Salut :)
[tex]3 \frac{3}{4} = \frac{4 \times 3 + 3}{4} = \frac{12 + 3}{4} = \frac{15}{4} [/tex]
[tex]5 \frac{3}{4} = \frac{4 \times 5 + 3}{4} = \frac{20 + 3}{4} = \frac{23}{4} [/tex]
[tex]8 \frac{6}{7} = \frac{7 \times 8 + 6}{7} = \frac{56 + 6}{7} = \frac{62}{7} [/tex]
Mai multe explicați:
https://brainly.ro/tema/8037665
Succes :)