Question

calcula en tu cuaderno:
a) 1/2 de ......... = 15
b) 2/7 de ......... = 4
c) 2/3 de ......... = 600
d) 4/9 de ......... =156

Answer 1

1/2 de x = 15
X/2 = 15
X= 30

2/7 de x = 4
2x/7 = 4
2x = 28
X = 14

2/3 de x = 600
2x/ 3 = 600
2x = 1800
X= 900

4/9 de x = 156
4x/9 = 156
4x = 1404
X = 351