Complicated sum minus product

What must be subtracted from the sum of 3/8 and 5/16 to get difference equal to the product of 5/8 and 3/16?

Correct answer:

x =  0.5703

Step-by-step explanation:

s=3/8+5/16=1116=0.6875 p=5/8 3/16=151280.1172  sx=p 0.6875x=0.1171875  x=0.570313  x=731280.570313=73128=0.5703



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