emely04100 emely04100
  • 10-06-2020
  • SAT
contestada

what is cross multiplication helpful is?

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pldrake04
pldrake04 pldrake04
  • 10-06-2020
Cross Multiplication is helpful for when you are using fractions.

Example:
1 4
— x — = ?????
2 2

Sooooo, you must multiply 1 by 2 to get 2. Then, multiply 4 by to 2, to equal 8.
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damariamilan
damariamilan damariamilan
  • 10-06-2020
In mathematics, specifically in elementary arithmetic and elementary algebra, given an equation between two fractions or rational expressions, one can cross-multiply to simplify the equation or determine the value of a variable.
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