Question

Efectuati:3supra4+-5supra6:1supra2

Answer 1

$\frac{3}{4} + \frac{5}{6} \div \frac{1}{2} =$
se amplifica 3/4 cu 3 5/6 cu 2 si 1/2 cu 6 si vine:
9/12+10/12:1/12=9/12+10/12=19/12
sau
9/12+10/12-9/12=19/12-9/12=10/12 sr simplifică cu 2 si cine 5/6 (fractie ireductibila).