Question

Calculati : a) 2 intregi 1/3 • 4/7+9/5:3-1/12

Answer 1

 2 intregi 1/3 • 4/7+9/5:3-1/12 = 
=  7/3*4/7+9/5:3/1-1/12 = 
 = 4/3+9/5*1/3-1/12 = 
 = 4/3+3/5-1/12 = 
= 20/15+9/15-1/12 = 
 = 11/15-1/12 = 132/180-15/180 = 117/180