Question

sa se efectueze : 314supra 11 : 5 supra 148 : 138=
11 supra 4 : 9 : 42 supra 7 =
2 supra 3 × 6 supra 9 : 4 supra 27 =
65 supra 12 × 7 supra 60=
18 : 2 supra 3 minus 7 : 1 supra 2 =
(5 supra 6 + 1 supra 3) : 33 supra 10 =
va rog e urgent

Answer 1

314/11·148/5:138=(314·148)/55·1/138=46472/7590=23236/3795
11/4 ·1/9 ·7/42=11/36·1/6=11/216
2/3·6/9·27/4=(2²·3³)/(2²·3³)=3 (se simplifica)
65/12·7/60=13/12·7/12=91/144
18·3/2-7·2=27-14=13
(5/6+1/3)·10/33=(5/6+2/6)·10/33=7/6·10/33=70/198=35/99