Question

Sendo x=1/5-3/2 e y √49/16, calcule x-y

Answer 1

X = 1/5 - 3/2   E   Y = √49/16  
X = M.M.C(5,2) = 10
X = 2/10 - 15/10
X = -13/10

Y = √49/16
Y = 7/4

X - Y =
-13/10  -  7/4 = 
M.M.C(4,10) = 20
-26/20  -  28/20 = - 34/10 Simplifica =-17/5