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Thesimplificationof the given mathematical expression aftersubtractionwould beIn the above question, it is given thatAmathematical expressionsuch as follows is given7/10 - 4/15We need tosimplifythe mathematical expression to get the solution7/10 - 4/15First, we'll take theLCMof both the denominators,LCM( 10, 15)Factors of 10 = 2 x 5Factors of 15 = 3 x 5LCM( 10, 15) = 2 x 5 x 3 = 30We'll get,===Hence, the simplification of the givenmathematical expressionaftersubtractionwould beTo learn more about,subtraction, herebrainly.com/question/1927340#SPJ1...