To solve (-4)×(7/5)×(-3/4)÷(7/15), we can simplify step by step using the properties of operations and rules for multiplying and dividing signed numbers.
First, let's multiply (-4) with (7/5):
(-4)×(7/5) = (-4*7)/(5*1) = -28/5
Now, we multiply the result (-28/5) with (-3/4):
(-28/5)×(-3/4) = (-28*-3)/(5*4) = 84/20
Next, we divide the obtained fraction (84/20) by (7/15):
(84/20) ÷ (7/15) = (84/20) * (15/7) = (84*15)/(20*7) = 1260/140 = 9
Therefore, (-4)×(7/5)×(-3/4)÷(7/15) simplifies to 9, which means the correct option is:
A. 9
Use the properties of operations and rules for multiplying dividing signed numbers to solve:
(-4)×(7/5)×(-3/4)÷(7/15)
A. 9
B. -147/75
C. 147/75
D. -9
1 answer
1 answer