B.) 12/7 × (1/4 - 1/9) ÷ (-5/4)
J: 12/7 × (9/36 - 4/36) ÷ (-5/4)
J: 12/7 × 5/36 × (-4/5)
J: - 240/1,260
J: - 4/21
C.) 18/24 + (-14/84)
J: 126/168 + (-28/168)
J: 98/168
J: 7/12
# Maaf Bila Salah
# Semoga Membantu
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B.) 12/7 × (1/4 - 1/9) ÷ (-5/4)
J: 12/7 × (9/36 - 4/36) ÷ (-5/4)
J: 12/7 × 5/36 × (-4/5)
J: - 240/1,260
J: - 4/21
C.) 18/24 + (-14/84)
J: 126/168 + (-28/168)
J: 98/168
J: 7/12
# Maaf Bila Salah
# Semoga Membantu