Question

oblicz ;

a) 1 5/6 - 3 1/3

b)-4,5 - 2 1/4

c) -3 1/6 - ( -5 5/6 )

d) 7 1/3 + (-4 5/6 )

e)-5 4/7 + 7

f) -6 - (-4 5/9)

Prosze o obliczenia !

Answer 1

a) 1  5/6 - 3  1/3 = 1 5/6 - 3 2/6 = 11/6 - 20/6 = -9/6 = -1 3/6 = -1 2/3

b)-4,5 - 2  1/4 = -4 1/2 - 2 1/4 = - 4 2/4 - 2 1/4 = -6 3/4

c) -3  1/6 - ( -5  5/6 ) = -3 1/6 + 5 5/6 = 5 5/6 - 3 1/6 = 2 4/6 = 2 2/3

d) 7  1/3 + (-4  5/6 ) = 7 1/3 - 4 5/6 = 7 2/6 - 4 5/6 = 2 4/6 = 2 2/3

e)-5  4/7 + 7 = 7 - 5 4/7 = 1 3/7

f) -6 - (-4  5/9) = -6 + 4 5/9 = -1 4/9