Exchange rate calculation problem

Personal understanding, for reference only, should be (110.20/1.3530)/(110.50/1.3560). First of all, the front price represents the buying price of the bank, and the back price represents the selling price of the bank, such as USD1= JPY 1 10.20/10.50, which means that the bank needs1/kloc. The problem is the conversion between Swiss francs and Japanese yen. First, how much yen does it cost to buy a Swiss franc? Banks can buy a dollar with 1 10.20 yen first, and then sell the dollar with 1.3530 Swiss francs, which is equivalent to buying 1.20 yen.