Respuesta :
4 & 2/5 = ?/10
(4 = ?/10) + (2/5 =?/10) * 1= 5/5 or 10/10
(4 x 10/10 = 40/10) + (2/5 = 4/10)
40/10 + 4/10 =
44/10
(4 = ?/10) + (2/5 =?/10) * 1= 5/5 or 10/10
(4 x 10/10 = 40/10) + (2/5 = 4/10)
40/10 + 4/10 =
44/10