Question

решение примера 2:3 1/5 +(3 1/4 -2/3 ):2/3-(2 5/18-17/36) × 18/65

Answer 1

1)2÷3 1/5=2÷3,2=0,625
2)3 1/4-2/3=3 3/12-8/12=2 15/12-8/12=2 7/12
3)31/12÷2/3=31/12×3/2=31/8=3,875
4)2 5/18-17/36=2 10/36-17/36=1 46/36-17/36=1 29/36
5)65/36×18/65=1/2=0,5
6)0,625+3,875=4,5
7)4,5-0,5=4
итого=4