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fraction
noun

a numerical quantity that is not a whole number (e.g. 1/2, 0.5).

a small or tiny part, amount, or proportion of something.“he hesitated for a fraction of a second”
synonyms: tiny part, small part, fragment, snippet
division
noun

the action of separating something into parts or the process of being separated.“the division of the land into small fields”
synonyms: dividing, dividing up, breaking up, breakup, cutting up, carving up, severance, splitting, dissection, bisection 
difference or disagreement between two or more groups, typically producing tension.“a growing sense of division between north and south”
synonyms: disunity, disunion, conflict, discord
multiplication
noun

the process or skill of multiplying.“we need to use both multiplication and division to find the answers”

MATHEMATICSthe process of combining matrices, vectors, or other quantities under specific rules to obtain their product.

equation
noun

MATHEMATICSa statement that the values of two mathematical expressions are equal (indicated by the sign =).
synonyms: mathematical problem, sum, calculation, question; equality“a boy was solving a quadratic equation” 
the process of equating one thing with another.“the equation of science with objectivity”
synonyms: equating, equalization, identification, association, connection, likening
formula
noun

a mathematical relationship or rule expressed in symbols.“the formula for the capacitance of a spherical capacitor”

a method or procedure for achieving something.“the forlorn hope of finding a peace formula”
synonyms: recipe, prescription, blueprint, plan, method, procedure, technique
algorithm
noun


a process or set of rules to be followed in calculations or other problemsolving operations, especially by a computer.“a basic algorithm for division”

calculation
noun

a mathematical determination of the amount or number of something.“finding ways of saving money involves complicated calculations”
synonyms: computation, reckoning, adding up, counting up, working out, determining, figuring, estimation, estimate 2. an assessment of the risks, possibilities, or effects of a situation or course of action.“decisions are shaped by political calculations”synonyms: assessment, judgement
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