dau coroana, atentiee
![Dau Coroana Atentiee class=](https://ro-static.z-dn.net/files/d14/92e1257d0e90349ba5b62cb0960aae8c.jpg)
Explicație pas cu pas:
[tex] \frac{7}{5} = \frac{21}{15} [/tex]
Amplificam cu 3 fractia 7/5