The 7/8 pound fish.
2/3lb = 0.6666 lb
7/8lb = 0.875 lb
To solve an equation with a rational (fraction) coefficient you need to multiply both sides of the equation by the reciprocal (invert the fraction - flip it).

The reciprocal of 1/6 is 6/1 or 6

The product of reciprocals equals 1
1x = 24
x = 24
Answer:
AABC and AXYZ are similar triangles. The lengths of two sides of each triangle are shown. Find the lengths of the third side of each triangle
Answer:
The diagonal length of the suitcase is 30 inches.
Hope it helps. :)