Question 87600
The number 56 is 87 1/2% of?
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Let the number be "x".
EQUATION:
(87 1/2 %)*x = 56
(175/2 %) x = 56 

[(175/2)/100]x = 56

[175/200]x = 56

[7/8] x = 56

x = (8/7)56

x = 64

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Another way to work this:
0.875x = 56
x =56/0.875
x= 64
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Cheers,
Stan H.