## anonymous 5 years ago What is 75% of 32

1. anonymous

These are three quarters - divide 32 by 4 and then multiply by 3.

2. anonymous

why?

3. anonymous

divide by 4 and multilpy by three wont doi oanythging you should multilpy them 75/100 multiplied by 32/1 that would do the trick right?

4. anonymous

Actually, 75/100 = 3/4 and you can always write ${a over b} * c = a * {1 over b} * c = ac *{1 over b} = ac : b$ So, my trick is to divide whole number by denominator (this follows from the fact that dividing by factor is multiplying by reciprocal and vice versa) and then multiplying by numerator.

5. anonymous

Sorry: ${a \over b} * c$

6. anonymous

${a \over b} *c = ac * {1 \over b} = ac : b$