1.-5/39+23/39
2.-7/12+1/6
can someone help me with these?
Rearranging the terms might help to see what is required.
1. 23/39-5/39 = 18/39 = 6/13
2. 2/12-7/12 = -5/12
1.4-7(2)^3/(-8)
2.6(4-3)^2-3(2)
need help evaluating
1. 4 - 7(8)/(-8)
4 - 56/(-8)
-52/-8 = ?
2. 4-3 = 1
1^2 = 1
6(1) -3(2) = ?
Of course! I can help you with these math problems. Let's solve them step by step.
1. -5/39 + 23/39:
To add or subtract fractions, we need to have the same denominator. In this case, both fractions already have the same denominator, which is 39. This makes the process easier.
Next, we can simply add the numerators and keep the common denominator:
-5/39 + 23/39 = (-5 + 23)/39 = 18/39.
However, to simplify the fraction, we can divide both the numerator and denominator by their greatest common divisor (GCD), which in this case is 3:
18/39 ÷ 3/3 = 6/13.
So, the answer is 6/13.
2. -7/12 + 1/6:
Just like in the previous problem, we need to make sure both fractions have the same denominator. In this case, the first fraction has a denominator of 12, and the second fraction has a denominator of 6. To make them the same, we can multiply the second fraction by 2/2:
-7/12 + 1/6 = -7/12 + (1/6) × (2/2) = -7/12 + 2/12.
Now that both have the same denominator, we can add the numerators:
-7/12 + 2/12 = (-7 + 2)/12 = -5/12.
The answer is -5/12.
I hope this helps you understand how to solve these problems step by step. Let me know if you have any more questions!