Respuestas

2013-11-06T12:34:38+01:00
(2/3) / 5 = 2/15
2 / (3/4) = 8/3
(3/7) · [(4/5) - (1/2)] = 3/7 · [(8-5)/10] = 3/7 · 3/10 = 9/70