I am writing a computer program for school, and although this sounds silly, I don’t know what the actual math process for money conversion is.

Example: 1 US Dollar = 9.5085 Mexican Pesos

What is the math process to get this? Is it division? If so, what is divided?

In general, you always have the right to multiply a quantity by one. It does not change the quantity, but it may change the way it looks. The issue is: how do you write 1?


One, can be written as 1, 1/1, 2/2, 3/3, etc. Something over itself is 1. Lets extend that. Something over its equivalent is 1.

Thus 1 USD/9.5065 MP is 1, and so is 9.5085 MP/1 USD. The 1 to use is the one that cancels units properly.

5USD x 9.5085 MP/1 USD = 47.5425 MP since the USD cancel

5MP x 1 USD/9.5085 MP = 0.5258…. USD ~ about 53 cents since the MPs cancel.

Let the units tell you which 1 to use.

Does this help?

3 Responses to “What is the math process for money conversion?”

  1. Lucas Says:

    Go on a money converter website, its really easy.
    References :

  2. ez80227 Says:

    you multiply or divide depending on which conversion and which figur eyou have…
    so if you have $232, multiply 232*9.5085
    if you have 6,032 peso, you divide 6032/9.5085
    if you have a revires and only want to use multiplication that can be done too.

    this is 4th grade math.
    References :

  3. cyphre Says:

    In general, you always have the right to multiply a quantity by one. It does not change the quantity, but it may change the way it looks. The issue is: how do you write 1?

    One, can be written as 1, 1/1, 2/2, 3/3, etc. Something over itself is 1. Lets extend that. Something over its equivalent is 1.

    Thus 1 USD/9.5065 MP is 1, and so is 9.5085 MP/1 USD. The 1 to use is the one that cancels units properly.

    5USD x 9.5085 MP/1 USD = 47.5425 MP since the USD cancel

    5MP x 1 USD/9.5085 MP = 0.5258…. USD ~ about 53 cents since the MPs cancel.

    Let the units tell you which 1 to use.

    Does this help?
    References :
    I teach this stuff.

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