2 | 4 | |

= | ||

14 | x |

x=

If we consider the following fraction math:

exterior | interior | |

= | ||

interior | exterior |

If the unknown variable is the numerator of the first fraction, then it can be calculated as the product of the denominator of the first fraction and the denominator of the second fraction divided to the denominator of the second fraction math.

If the unknown variable is the numerator of the first fraction, then it can be calculated as the product of the denominator of the first fraction and the denominator of the second fraction divided to the denominator of the second fraction math.

In a cross multiplication, the product of the numerator of one fraction and the denominator of what it is set equal to is equal to the product of the remaining denominator and numerator.

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