A. (1/3 - 1/2) ÷ (5/3 - 3/4) - (0,25 - 3/8 ÷ 0,625) =
B. 3/5 - (1,4 × 5/14 - 0,9/3²) ÷ (-1/5) =
C. 4/5 ÷ (1/6 - 1/5) - [2/9 - (3/8 - 1 1/3)] =
D. [( -1 1/2)² - ( -1 1/3)²] : 1 1/4 =
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a)=37/220
b)=2 3/5
c)=-25 13/72
d)=17/45
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