Question

(-1/2)+(-2/3)-(-5/6)

Answer 1

$(- \frac{1}{2})+(- \frac{2}{3} )-(- \frac{5}{6} )=(- \frac{3}{6} )+(- \frac{4}{6} )-(- \frac{5}{6} )= - \frac{2}{6} =- \frac{1}{3}$

Answer 2

se amplifica primii doi termeni cu 3respectiv 2 si obtinem:

(-3pe 6)+(-4pe6)-(-5pe6)=(-7pe 6)+(+5pe6)=-2 pe6=-1pe 3