Answer:
35
Step-by-step explanation:
2/5 + 3/7
the least common denominator is 35 because 14/35 + 15/35.
Bad question. Volume is cubic units, not square units.
Answer:

Step-by-step explanation:
Though it is not what you have written, we think you want to simplify ...

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When writing a fraction in plain text, parentheses are needed around the entire denominator. The order of operations tells you that a/bc = (a/b)c, not a/(bc).
In 864 it is a tenth as large... Hope that helped lol i'm not completely sure. I did it in my head.