Fractions problem?

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1 Answer
Jul 29, 2018

#48" marbles"#

Explanation:

#"let amount of marbles Dan has "=x#

#"then "1/3(x+28)=4/5x#

#"multiply both sides by 15"#

#5(x+28)=12x#

#5x+140=12x#

#"subtract "5x" from both sides"#

#140=7x#

#"divide both sides by 7"#

#20=x#

#"Dan has 20 marbles and Leah has 48"#

#color(blue)"As a check"#

#4/5xx20=16" and "1/3xx48=16#