X=200 2/3 of 15 is 10 make that negative add it to the other side 1/5x = 40 and then multiply 40 by 5 to get your answer Check 1/5 of 200 is 40 - 10 = 30 40-10=30 30=30
2/3 + 1/4. You start by converting the fractions so that they have a common denominator. 8/12 + 3/12 = 11/12 11/12 of the girls have blue and brown eyes. That leaves 1/12 of the girls who have neither blue nor brown eyes.