What does cross-multiplication mean?
Definitions for cross-multiplication
cross-mul·ti·pli·ca·tion
This dictionary definitions page includes all the possible meanings, example usage and translations of the word cross-multiplication.
Wiktionary
cross-multiplicationnoun
An instance, or the process, of cross-multiplying.
Wikipedia
Cross-multiplication
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. The method is also occasionally known as the "cross your heart" method because lines resembling a heart outline can be drawn to remember which things to multiply together. Given an equation like a b = c d , {\displaystyle {\frac {a}{b}}={\frac {c}{d}},} where b and d are not zero, one can cross-multiply to get a d = b c or a = b c d . {\displaystyle ad=bc\quad {\text{or}}\quad a={\frac {bc}{d}}.} In Euclidean geometry the same calculation can be achieved by considering the ratios as those of similar triangles.
Wikidata
Cross-multiplication
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. For an equation like the following: one can cross-multiply to get
Numerology
Chaldean Numerology
The numerical value of cross-multiplication in Chaldean Numerology is: 6
Pythagorean Numerology
The numerical value of cross-multiplication in Pythagorean Numerology is: 5
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"cross-multiplication." Definitions.net. STANDS4 LLC, 2024. Web. 23 Apr. 2024. <https://www.definitions.net/definition/cross-multiplication>.
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