-4 x 7/5 x - 3/4 ➗7/15
To solve this expression, we'll follow the order of operations (also known as PEMDAS).
First, we'll simplify the multiplication:
-4 x 7/5 x -3/4
= (-4*7/5) * (-3/4)
= -28/5 * -3/4
Next, we'll multiply the fractions:
(-28/5) * (-3/4)
= (28/5) * (3/4) (multiply the negatives to get a positive fraction)
Now, we'll multiply the numerators and denominators:
(28 * 3) / (5 * 4)
= 84/20
Finally, we'll simplify the fraction by dividing the numerator and denominator by their greatest common divisor, which is 4:
84/20 = (84/4) / (20/4)
= 21/5
Therefore, -4 x 7/5 x -3/4 ÷ 7/15 equals 21/5 or 4.2.