a) 5/7 x 4/9 = b) 1/5 x 2/3 = c) 2/5 x /78 = d) 3/10 x 7/11 = e) 6/15 x 5/4 = a) 5/7 x 4/9 = b) 1/5 x 2/3 = c) 2/5 x /78 = d) 3/10 x 7/11 = e) 6/15 x 5/4 =