Respuesta :

Leader
2:7
2x:7x

2x + 7x = 9x

72 = 9x
x = 72/9
x = 8

2x = 2(8) = 16
7x = 7(8) = 56

56 + 16 = 72

£72 can be split into £16 and £56 so that way it is in the ratio of 2:7