Answer:
-36/35
Explanation:
First, we need to find the LCM of 5 and 7 (the denominators) which is 35.
-8*7/35 + 4*5/35 = -56/35 + 20/35 = -36/35
Your answer is -36/35, or if it asks for a mixed number it's -1 1/35.
Hope this helps
-36/35 or -1 1/35
-8/5 + 4/7
Get a common denominator of 35
-8/5 * 7/7 + 4/7 *5/5
-56/35 + 20/35
-35/35 - 1/35
-1 1/35
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