Answer :

iGreen
Change them into fractions over 100, and the numerator will be the percentage.

7/10 = 70/100 = 70%

2/5 = 40/100 = 40%

1/3 = 33.33/100 = 33.33%

17/20 = 85/100 = 85%
percent means parts out of 100 so
exg 23/100=23%

just convert the bottom number to 100
7/10 times 10/10=70/100=70%

2/5 times 20/20=40/100=40%

1/3 times 33.333/33.333=33.3333/99.999 close enought 33.33%

17/20 times 5/5=85/100=85%