mariani02021975
A. -3/4 + 1/4 = -2/4 jika disederhanakan menjadi -1/2 B. 7/5 + (-4/5) = 3/5 C. -5/9 + (-8/9) = -13/9 D. 1 2/3 - (-1/3) = 5/3 - (-1/3) = 6/3 jika disederhanakan menjadi 2 E. 7 4/9 - 5 5/9 = 67/9 - 50/9 = 17/9 jika disederhanakan menjadi 1 8/9
b. 7/5 + (-4/5) = 7/5 - 4/5 = 3/5
c. -5/9 + (-8/9) =-5/9 - 8/9 =-13/9
d. 1 2/3 - (-1/3) = 5/3 + 1/3 = 6/3 atau 2
e. 7 4/9 - 5 5/9 = 67/9 - 50/9 = 17/9 atau 1 8/9
B. 7/5 + (-4/5) = 3/5
C. -5/9 + (-8/9) = -13/9
D. 1 2/3 - (-1/3) = 5/3 - (-1/3)
= 6/3 jika disederhanakan menjadi 2
E. 7 4/9 - 5 5/9 = 67/9 - 50/9
= 17/9 jika disederhanakan menjadi 1 8/9