Answer:17/20 = 27/20 = 81/60.
2 and 65438+4/05 = 34/15 =136/60.
30 o'clock 1 1
= 1 1/30=22/60
1 1
Three students ran 800 meters: A took three and a half minutes, B took three and three quarters, and C took three tenths.
Who is the first? Why?
A: A comes first. Because three and a half >: three tenths of seven > three and three quarters.