If john has fifteen red shirts and six blue shirts, what fraction of his shirt are blue?

6/15

Step-by-step explanation:

6/15

Step-by-step explanation:

6 out of 15 of his shirts are blue

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).