Bonsoir
A = -13/8 - 5/24
= -39/24 - 5/24
= -39 - 5/24
= -44/24
A = -11 /6
B = 10/15 × 7/20
= 70/300
B = 7/30
C = 15/4 ÷ 21/16
= 15/4 × 16/21
= 240/84
C = 60/21
D = 5/4 - 7/4 × 7/8
= 5/4 - 49/32
= 40/32 - 49/32
D = -9/32
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Bonsoir
A = -13/8 - 5/24
= -39/24 - 5/24
= -39 - 5/24
= -44/24
A = -11 /6
B = 10/15 × 7/20
= 70/300
B = 7/30
C = 15/4 ÷ 21/16
= 15/4 × 16/21
= 240/84
C = 60/21
D = 5/4 - 7/4 × 7/8
= 5/4 - 49/32
= 40/32 - 49/32
D = -9/32