How can knowing the greatest common factor and least common multiple when adding subtracting and multiplying fractions

Parks is wearing several rubber bracelets one third of the bracelets are tie dye 1/6 are blue and 1/3 of the remainder are camouflage if park swears to camouflage bracelets how many bracelets does he have on

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2