Question

por favor algien me puede ayudar​

Answer 1

????????????????????????? No me abre la imagen :’(

Answer 2

A)
2/3 x 15/15 = 30/45
1/9 x 5/5 = 5/45
3/5 x 9/9 = 27/45
= 30/45 + 5/45 + 27/45 = 62/45 = 1 17/45
B)
2/3 x 9/9 = 18/21
4/7 x 3/3 = 12/21
= 14/21 - 12/21 = 2/21
C)
4/5 x 12/12= 48/60
2/3 x 20/20 = 40/60
1/4 x 15/15 = 15/60
= 48/60 + 40/60 + 15/60 = 103/60 = 1 43/60