You're right! Product of slopes of perpendicular lines must be -1
3 1/4 can turn into 13/4 as an improper fraction. 2 2/3 can turn into 8/3 as a improper fraction. To multiply fractions, just multiply the top by the top and the bottom by the bottom. This yields 104/12. Divide top and bottom by 4 yields 26/3 or 8 2/3
Your answer would be 4 13/24. Or in decimal: 4.541667. ( 7/8 + 3 4/6 = 4 13/24 )
Answer:
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Step-by-step explanation: