(21×18)÷14 = 378÷14 = 189÷7 = 27/1 = 2750÷(16×25) = 50÷400 = 1/8(12×15)÷40 = 180÷40 = 9/2 = 4 1/2(4×24)÷(2×8) = 96÷16 = 6
(21×18)÷14 = 378÷14 = 189÷7 = 27/1 = 27
50÷(16×25) = 50÷400 = 1/8
(12×15)÷40 = 180÷40 = 9/2 = 4 1/2
(4×24)÷(2×8) = 96÷16 = 6