Since 1 Mexican Peso is equal to 9.85801791881 Sri Lankan Rupees, we could say that n Mexican Pesos are equal to 9.85801791881 times n Sri Lankan Rupees. In other words, we could use the following formula:
Sri Lankan Rupees = Mexican Pesos x 9.85801791881
For example, let's say that we want to convert 2 Mexican Pesos to Sri Lankan Rupees. Then, we just replace Mexican Pesos in the abovementioned formula with 2:
Sri Lankan Rupees = 2 x 9.85801791881
That is, 2 Mexican Pesos are equal to 19.7160358376 Sri Lankan Rupees.