1)1/14•2/5-1/3 2)5/6:1/3+1 3/8 3)2 1/3:1 5/9-5/6выполните действия

Question

1)1/14•2/5-1/3 2)5/6:1/3+1 3/8 3)2 1/3:1 5/9-5/6
выполните действия

Answer 1

1)1/14•2/5-1/3
1/14×2/5=1/35
1/35-1/3=3/105-35/105= -32/105

2)5/6:1/3+1 3/8
5/6:1/3=5/6×3/1=5/2=2 1/2
2 1/2+1 3/8=5/2+11/8=20/8+11/8=31/8=3 7/8

3)2 1/3:1 5/9-5/6
2 1/3:1 5/9=7/3:14/9=7/3×9/14=3/2
3/2-5/6=9/6-5/6=4/6=2/3