гюйс

Verified answer

     3,5:(1 9/49-(3/7)²=3,5
1)   1 9/49 - (3/7)²=1 9/49 - 9/49=1
2)   3,5:1=3,5

     (2/5-6,6) : ( - 1 1/4-1 1/3)=5/12
1)   2/5-6,6=0,4-6,6= - 6,2= - 6 1/5
2)   - 1 1/4 - 1 1/3= -1 3/12 - 1 4/12= - 2 7/12
3)   - 2 7/12 : ( -6 1/5)=31/12 * 5/31=5/12

- 2/3 m*0.2( -0.5)*( -1 1/2)p= - 2/3 m*0.1 * 3/2 p= - 0.1mp