7/9 - (-13/18)=
The answer to that question would be 1/1/2.
14/18- (-13/18)=27/18=3/2 or 1 1/2
is that right?
thank you
Yes, that is correct.
To calculate the subtraction of fractions, you need to find a common denominator. Here's how you can calculate 7/9 - (-13/18):
Step 1: Find the common denominator
The denominators are 9 and 18. Since 9 is a multiple of 18, you can use 18 as the common denominator.
Step 2: Convert both fractions to have the common denominator
To convert 7/9 to have a denominator of 18, multiply both the numerator and denominator by 2. This gives you 14/18.
To convert -13/18 to have a denominator of 18, you don't need to make any changes because it already has the common denominator.
Step 3: Subtract the fractions
Now that both fractions have the same denominator, you can subtract them.
14/18 - (-13/18) = 14/18 + 13/18
When you add fractions with the same denominator, you add the numerators together while keeping the common denominator.
14/18 + 13/18 = (14 + 13) / 18 = 27/18
Step 4: Simplify the fraction
To simplify the fraction, you can divide both the numerator and the denominator by their greatest common divisor. In this case, the greatest common divisor of 27 and 18 is 9.
27/18 = (27 ÷ 9) / (18 ÷ 9) = 3/2
Therefore, 7/9 - (-13/18) simplifies to 3/2.