Question

¿ cuanto le falta a 3/7 para ser igual a 3/5 de 13/21 de 2/3 de 5/14 de 7? URGENTE :(

Answer 1

(3/7)+N = (3/5)(13/21)(2/3)(5/14)7
(3 + 7N)/7 = (39/105)(10/42)7
(3 + 7N)/7 = (390/4,410)7
(3 + 7N)/7 = 2,730/4,410
13,230 + 30,870N = 19,110
30,870N = 5,880
N = 5,880/30,870
N = 1,176/6,174
N = 588/3,087
N = 196/1,029

Answer 2

x+3/7=3/5*13/21*2/3*5*14*7
(7x+3)/7=2730/4410
7x+3=7*2730/4410
7x=2730/630
x=273/441
x=13/21