Question

ПОМОГИТЕ РЕШИТЬ, АЛГЕБРА, 8 КЛАСС, 30 БАЛЛОВ.

Answer 1

а) 1/2+5/6 = (1*3)/(2*3) + 5/6 = 3/6+5/6 = 8/6 = 1 1/3
б) 5/8-7/32 = (5*4)/(8*4)-7/32 = 20/32 - 7/32 = 13/32
в) 3/16+5/24 = (3*3)/(16*3)+(5*2)/(24*2) = 9/48 + 10/48 = 19/48
г) a/8-b/6 = (а*3)/(8*3)-(b*4)/(6*4) = (3а - 4b)/24
д) а/4+b/5 = (a*5)/(4*5) + (b*4)/(5*4) = (5a+4b)/20