Book Maths Puzzle Algebra

what the freak is the l.c.m AND the g.c.d. of 82, 96 and 112? i'm too tired to try this any more!
Thanks!

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Book Other Question

Model each problem with a quadratic equation. Then Solve.
The area of a triangular sail on a sailboat is 300ft squared. The ratioof the base of the sail to its height is 2:3. Find the dimensions of the sail. The width of a rectangle is 45% of the length. If the perimeter of the rectangle is 58cm, find its width.