To solve this expression, we will follow the order of operations (PEMDAS):
First, simplify the fraction inside the parentheses:2/3 - 1/5 = (10/15) - (3/15) = 7/15
Then, calculate the expression inside the parentheses:-3/4 * 7/15 = -21/60 = -7/20
Next, subtract the result from step 2 from 0.294:0.294 - (-7/20) = 0.294 + 7/20 = (0.294*20 + 7)/20 = (5.88 + 7)/20 = 12.88/20 = 0.644
Finally, divide the result from step 3 by 8.4:0.644 / 8.4 = 0.0767
Therefore, -3/4×(2/3-1/5)-0,294:8,4 = 0,0767.
To solve this expression, we will follow the order of operations (PEMDAS):
First, simplify the fraction inside the parentheses:
2/3 - 1/5 = (10/15) - (3/15) = 7/15
Then, calculate the expression inside the parentheses:
-3/4 * 7/15 = -21/60 = -7/20
Next, subtract the result from step 2 from 0.294:
0.294 - (-7/20) = 0.294 + 7/20 = (0.294*20 + 7)/20 = (5.88 + 7)/20 = 12.88/20 = 0.644
Finally, divide the result from step 3 by 8.4:
0.644 / 8.4 = 0.0767
Therefore, -3/4×(2/3-1/5)-0,294:8,4 = 0,0767.