Let's break down the expression step by step:
Putting it all together:
-58 - (-33/5) = -58 + 33/5 = -290/5 + 33/5 = -257/5
So, 8,6*(-5)-(7,4):(-7 2/5) simplifies to -257/5.
Let's break down the expression step by step:
-5 * 6 = -30-30 - (7 * 4) = -30 - 28 = -58-7 + 2/5 = -35/5 + 2/5 = -33/5Putting it all together:
-58 - (-33/5) = -58 + 33/5 = -290/5 + 33/5 = -257/5
So, 8,6*(-5)-(7,4):(-7 2/5) simplifies to -257/5.