Sagot :
Answer:
= -20/39
Step-by-step explanation:
(8/13 / 4) - (1 3/4 x 8/21)= 20/39
(8/13 / 4)
8/13 / 4 =
8/13 / 4/1 =
8/13 x 1/4= 8/52 lowest term 8/52 / 4 = 2/13
(1 3/4 x 8/21)
1 3/4 x 8/21 = 7/4 x 8/21 = 56/84 lowest term 56/84 / 28= 2/3
2/13 - 2/3
2/13 - 2/3= 6/39 - 26/39 = -20/39
= -20/39