Answer:
you have to find the smallest common denominator
Step-by-step explanation:
so once the fractions have the same denominator you can add them easily and simplify
The answer is <span><span>−<span>6<span>x2</span></span></span>+<span>7x</span></span>−<span>212</span>
Thank you for posting your question here at brainly. The actual range weights of the object is I think 144.9 to 145.5. I hope the answer will help.
