Among 8/5, 6/ 15, 9/ 16, 34/5 1 and 33/ 128, there are (2) simplest true scores.
The numerator and denominator of a fraction are multiplied by 0. 1 at the same time, and the size of the fraction remains the same (right).
Cutting a 2.5-meter-long cuboid wood into three equal parts increases the surface area by 12 square decimeter. This is the same as the volume of wood (75 cubic decimeters).
Xiaoming goes to the library every six days, and Xiao Qiang goes every eight days. They met in the library of the last planet last Saturday, and the next meeting is on Tuesday.
[768 ÷ 4 ÷ (32-4× 2)+4× 2 ]× 32 = 512 (square centimeter)