MATEMATYKA. PROSZE O POMOC

Question

Proszę o pomoc :(
 
oblicz:
a) ( 5/23 - 3/46) - ( - 7/2 ) + 7/23 =
b) (3 - 2/3) - (5całych 2/3 + 7całych 1/15 - 4całe 3/5)
c) 3/7* 8/15* 21/6* 1/9 =
d) 8 : 13/9* 2 =
e) (3 + 5) : 3 * 13/8 =
f) (-3/4)* (18/5 + (-3/5) - 21/10) =
g) (7/8 - 5) * 4/3 + 7/10 : (2/15 + 4/30)

Answer 1

a - (5 / 23) - (3 / 46) + (7 / 2) + (7 / 23) = 3,95652174
b - (3 - (2 / 3)) - (5 * (2 / 3)) + (7 * (1 / 15)) - (4 * (3 / 5)) = -2,93333333
c - (3 / 7) * (8 / 15) * (21 / 6) * (1 / 9) = 0,0888888889
d - 8 / ((13 / 9) * 2) = 2,76923077