Răspuns:
Explicație pas cu pas:
(195-84) / 180 * 20/37 + 11/3
111/180 * 20/37 + 11/3
2220/6660 + 11/3
(2220+24420) / 6660 = 4
(37/30 - 3/4 ) : 29/30 - (2 5/8 - 1 3/4 ) : 3 1/2
(148-90) / 120 * 30/29 - (21/8 - 7/4 ) * 7/2
58/120 * 30/29 - (21-14)/8 * 7/2
1/2 - 7/8 * 7/2 = 1/2 - 49/16 = (8-49) / 16 = -41/16