Question

amplificati cu 3 factiile:2/7,3/10,4/9,6/13,10/21

Answer 1

2/7=6/21
3/10=9/30
4/9=12/27
6/13=18/39
10/21=30/63

Answer 2

$1) \frac{6}{21} \\ \\ 2) \frac{9}{30} \\ \\ 3) \frac{12}{27} \\ \\ 4) \frac{18}{39} \\ \\ 5) \frac{30}{63}$