help plsss!!!
Ex 4 plssss!!!!!!!!


Help Plsss Ex 4 Plssss class=

Răspuns :

a) 49/81×30/7×18/42×4/5=8/9
b) 5/24×7/18×9/35×8/11=1/66
c) 7/33×121/15×9/11×20/14=2
d) 169/24×9/13×15/26×4/45=1/4
e) 9/34×20/21×17/5×28/3=8