a. ( 2/3-1/2):(1/3-1/4) = (4/6-3/6) :(4/12-3/12) =1/6 :1/12 = 1/6 x12 =12/6 =2
b. 2/3-1/2:1/3-1/4 = 2/3 -1/2x3 -1/4=2/3-3/2-1/4 = 8/12-18/12-3/12 =8/12-21/12 =-13/12 c.-5/3+2/3:(-3/5-1/3) = -5/3 +2/3 : (-9/15-5/15) = -5/3+2/3 : -14/15 = -5/3 +2/3x -15/14 = -5/3 -30/42 = -5/3 -5/7 = -35/21-15/21 =-50/21
d. -5/3+2/3:(-3/5)-1/3 = -5/3 +2/3x -5/3 -1/3 =-5/3-10/9 -1/3 = -15/9-10/9-3/9 = -28/9
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a. ( 2/3-1/2):(1/3-1/4) = (4/6-3/6) :(4/12-3/12) =1/6 :1/12 = 1/6 x12 =12/6 =2
b. 2/3-1/2:1/3-1/4 = 2/3 -1/2x3 -1/4=2/3-3/2-1/4 = 8/12-18/12-3/12 =8/12-21/12 =-13/12
c.-5/3+2/3:(-3/5-1/3) = -5/3 +2/3 : (-9/15-5/15) = -5/3+2/3 : -14/15 = -5/3 +2/3x -15/14 = -5/3 -30/42 = -5/3 -5/7 = -35/21-15/21 =-50/21
d. -5/3+2/3:(-3/5)-1/3 = -5/3 +2/3x -5/3 -1/3 =-5/3-10/9 -1/3 = -15/9-10/9-3/9 = -28/9