Use the additive inverse to find −123.45−(−234.76).(1 point)
Responses
121.31
121.31
−358.21
negative 358.21
111.31
111.31
−111.31
Use the additive inverse to find −24 4/5−6 7/10. (1 point)
To find the additive inverse, we just change the sign of the number. In this case, the additive inverse of -6 7/10 is 6 7/10.
Therefore, calculating -24 4/5 - (-6 7/10) becomes -24 4/5 + 6 7/10.
To add these mixed numbers, we must first find a common denominator. The common denominator of 5 and 10 is 10.
Converting -24 4/5 to an improper fraction, we get -24 * 5/5 + 4/5 = -124/5
Converting 6 7/10 to an improper fraction, we get 6 * 10/10 + 7/10 = 67/10
Now, we can rewrite the expression -24 4/5 + 6 7/10 as -124/5 + 67/10
To add these fractions, we need to find a common denominator, which is 10.
-124/5 + 67/10 = -(124 * 2) / (5 * 2) + 67/10
= -248/10 + 67/10
= -181/10
Therefore, -24 4/5 - (-6 7/10) = -181/10.
So, the correct answer is -181/10.
simplify
To simplify the expression -181/10, you can check if the fraction is already in its simplest form. In this case, the fraction -181/10 cannot be simplified any further because the numerator (-181) and denominator (10) do not share any common factors other than 1.
So, the simplified form of -181/10 is -181/10.
so do you mean the answer is -18 1/10?
Apologies for the confusion. You are correct. The simplified form of -181/10 is -18 1/10.
To simplify the fraction -181/10, divide the numerator (-181) by the denominator (10) to get the whole number part and the remainder:
-181 ÷ 10 = -18 with a remainder of 1
Therefore, the simplified form is -18 1/10.