Diario de matemáticas de primaria para sexto grado, Volumen 1
=(6/13+1/13)X6/29+6/13x 22/29
= 6/13x 6/29+1/13x 6/29+6/13x 22/29 p>
= 6/13x 6/29+6/13x 1/29+6/13x 22/29
= 6/13x(6/29+1/29+22/29)
=6/13x29/29
=6/13x1
=6/13
= 6/13x 6/29+1/13x 6/29+6/13x 22/29 p>
= 6/13x 6/29+6/13x 1/29+6/13x 22/29
= 6/13x(6/29+1/29+22/29)
=6/13x29/29
=6/13x1
=6/13