Question

calculați: 1/2•1/6
3/4•16/9
18/30:9/10
2/7•21+5/2:2
4/5•(3/2-2/3)+7•1/3
​va rog!!!!!!!!!!!!!!;;

Answer 1

Răspuns:

1supra 2 ×1supra 6= 1×1 supra 2×6=1 supra 12

3/4 ×16/9=3×16/4×9=48/36

18/30 :9/10=18/30 ×10/9=180/270