Question

8 9/10+65 1/2- (84 3/4 + 16 4/5 -95 7/8 = (15 9/16 - 7 1/8)+(9 5/6 - 7 5/12) - (5 3/4 + 1 1/3) = Oblicz ułamki

Answer 1

a) 8 9/10+ 65 1/2 -(84 3/4 + 16 4/5 - 95 7/8)= 8 9/10 + 65 5/10 - (84 30/40 + 16 32/40 - 95 35/40) = 73 14/10 - (100 62/40 - 95 35/40) = 73 14/10- 5 27/40 = 73 56/40 - 5 27/40 = 68 29/40

b) (15 9/16 - 7 1/8)+(9 5/6 - 7 5/12) - (5 3/4 + 1 1/3) = ( 15 9/16 - 7 2/16) = (9 10/12 - 7 5/12) - (5 9/12 + 1 4/12) = 8 7/16 + 2 5/12 - 4 5/12 = 8 21/48 + 2 20/48 - 4 20/48 = 10 41/48 - 4 20/48 = 6 21/48 = 6 7/16 

Chyba dobrze, nie mam pewności.