## jjircal18 Group Title how do i do this problem 7/20 =decimal number? 2 years ago 2 years ago

1. pfenn1 Group Title

what is $\frac{7}{20}=7\div20=?$

2. pfenn1 Group Title

Or you could multiply the fraction by 5/5.$\frac{7}{20} \times \frac55=\frac{35}{100}$

3. jjircal18 Group Title

2.86 how did you get the 5/5

4. beeqay Group Title

What are you trying to do? Or what does the question ask?

5. pfenn1 Group Title

I was multiplying the expression by 1. I chose 5/5 because I wanted the denominator to be 100. Because we know what the decimal of 35/100 is......0.35.

6. jjircal18 Group Title

thanks i was divivding backwards , i havent had math in twenty years studing for placement test

7. pfenn1 Group Title

Good luck with that. I know how you feel. I haven't taken math in almost 30 years.

8. jjircal18 Group Title

9. jjircal18 Group Title

how about this? all of the following are ways to right 25 percent of N except 0.25 N ,25n/100, 1/4 N ,25 N

10. pfenn1 Group Title

Which one do you think?

11. jjircal18 Group Title

25N?

12. pfenn1 Group Title

Yep. That one shows 25 times N. The others are all equal to one another.$0.25 N = \frac{25N}{100}=\frac 14N$

13. jjircal18 Group Title

thanks thats pretty good if you havent had math in 30 yrs!!!!

14. pfenn1 Group Title

You're welcome.