-1/4+(-2/7)=?
a.-15/28
b.-3/11
c.9/14
d.3/28
I did the last problem for you. Now it's your turn.
I'll be glad to check your answer.
what i got was a but i dont get it
How did you do the problem? Please post it and I'll see if I can help you.
To solve the equation -1/4 + (-2/7), you need to find a common denominator for the two fractions and then add them together.
Step 1: Find the least common multiple (LCM) of the denominators, which in this case is 28. To do this, you can list the multiples of both denominators until you find a common multiple.
Multiples of 4: 4, 8, 12, 16, 20, 24, 28...
Multiples of 7: 7, 14, 21, 28...
So, the least common multiple is 28.
Step 2: Convert the fractions so that they have the same denominator of 28.
-1/4 = -1/4 * 7/7 = -7/28
-2/7 = -2/7 * 4/4 = -8/28
Step 3: Add the two fractions together.
-7/28 + (-8/28) = -15/28
Therefore, the answer is -15/28. So, the correct option from the given choices is a. -15/28.