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. If you subtract ½ from a number and multiply the result by ½, you get 1/8 what is the number?

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User CREcker
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3.6k points

2 Answers

5 votes

Answer:

0.75

Explanation:

User Nachman
by
3.4k points
3 votes

Answer:

3/4

Explanation:

Use x for the equation: (x - 1/2)*1/2 = 1/8

Just go backwards

1/8 is the result, and to get it, you multiply by 1/2, so instead of that, you divide 1/8 by 1/2 instead (Dividing a number by a fraction is the same as multiplying it by its reciprocal. The reciprocal of 1/2 is 2): (1/8)/(1/2) = 1/8 * 2 = 2/8 = 1/4, now since we subtracted 1/2, we add instead: 1/4 + 1/2 = 1/4 + 2/4 = 3/4

User Hlagos
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2.7k points