if m : n is 3 : 9 and n : p is 9 : 12 then m : p is equal to
"the two ratios given are having the same number 9 for n in both the ratios . hence - m : n = 3 : 9 n : p = 9 : 12 = > m : p = 3 : 12 = > 1 : 4 answer b"
divide(3, 12)