Răspuns:
Explicație pas cu pas:
a. 4 si 1/6 :5/4 = (4 x 6 + 1)/6 x 4/5 = (25x 4 )/( 6 x5 ) =100/30 = 10/3
obs : 4 intregi inseamna (4x6)/6 = 24/6;
b. 8/9: 5 1/3 = (8/9)/ [( 5x3 +1)/3]= 8/9 x 3/16 = (8x 3)/( 9 x 16) = 1/ 6
obs : daca se imparte la o fractie, asta inseamna inmultire cu inversul acestei fractii
c. 2 1/6 : 4 1/3 = ( 12+1)/6 : { 12+1)/3}= 13/6 x 3/13= 1/3
d. 5 si 1/7: 3 si 3/14 = (5x7+1)/7 x 14/ ( 3X14 + 3) = 36/7 x 14/45= (2x 4)/5= 8/5
