Question

Ma ajuta si pe mine cineva cu acest exercitiu?​

Answer 1

Buna! Desigur.

a) 5/12 + 9/12 = $\frac{17}{12}$

b)4/15 - 7/15 = -3/15 = -$\frac{1}{3}$

c)2/21 + 1/7 = 2/21 + 3/21 = 4/21 = $\frac{1}{7}$

d)3/16 - 9/24 = 1/8 - 3/8 = -2/8 = -$\frac{1}{4}$

e) -7/9 + 8/10 = -7/9 + 4/5 = -35/45 + 36/45 = $\frac{1}{45}$

f)-11/12 -1$\frac{2}{5}$ = -11/12 - 12/5 = -55/60 - 144/60 = - $\frac{199}{60}$ (cred ca e ireductibila)

Sper ca te-am ajutat! :))