Question

7/9со знаменателем 18;45;99;117 и 4/15 со знаменателем 30;75;150;165

Answer 1

1)
7/9×2=14/18
7/9×5=35/45
7/9×11=77/99
7/9×13=81/117
2)
4/15×2=8/30
4/15×5=20/75
4/15×10=40/150
4/15×11=44/165