Question

545. Найдите значения выражения ​

Answer 1

1). 2 11/13:1/2=37/13:1/2=37/13×2/1=74/13=5 9/13

10 11/13-5 9/13=5 2/13;3 1/2=68/13:7/2=68/13×2/7=136/91=1 45/91

2). 12:3 3/5=12:18/5=12×5/18=2×5/3=10/3=3 1/3+2/3=10/3+2/3=12/3=4:1 1/2=4×2/3=8/3=2 2/3-1 1/3=8/3-4/3=4/3=1 1/3

1. 1 45/91

2. 1 1/3