Question

rezultatul calculului : 1 supra 30 : (-1 supra 20 ) - (5 supra 6) este : (vedeti in imagine) help!

Answer 1

$\frac{1}{30} :( -\frac{1}{20} )-(- \frac{5}{6} )= \frac{1}{30} :( -\frac{1}{20} )+ \frac{5}{6} = \frac{1}{30} .(-20 )+\frac{5}{6} = -\frac{2}{3} + \frac{5}{6}= \frac{1}{6}$

raspuns corect B)