Calculate each quotient 1. 2/5 ÷ 3 1/10

2. 4 1/3 ÷ 4/7

3. 3 1/6 ÷ 9/10

4. 5/8 ÷ 2 7/12

Please answer all of these questions.

1.2/5÷3 1/10=

2/5÷31/10=

2/5×10/31=

20/155=

4/31

2.4 1/3÷4/7=

13/1÷4/7=

13/1×7/4=

91/4 then simplify it

3. 3 1/6÷9/10=

18/6÷9/10=

18/6×10/9=

180/54 then simplify it

4.5/8÷2 7/12=

5/8÷31/12=

5/8×12/31=

60/248=

15/62

Am done please mark me the brainliest and give me more points

there are lots of ways.   pick's theorem tells us if the vertices are lattice points the area a is

a = b/2 + i - 1

where b is the number of boundary lattice points and i is the number of interior lattice points.

in the figure i count b=16, i=50 so

a = 8 + 50 - 1 = 57

let's try the shoelace formula.   the area is half the sum of the cross products of the sides.  

a(-2,6)   -2(2)-6(-5) = 26

b(-5,2)   -5(-3) - 2(-2) = 19

c(-2,-3) -2(-3) - (-3)(4) = 18

d(4,-3)   4(3) - (-3)(5) = 27

e(5,3)   5(3) - 3(1) = 12

f(1,3)     1(6) - 3(-2) = 12

a(-2,6)

each of the cross products is twice the area of the triangle with the associated side and one vertex the origin. so the area of abo=26/2=13.

area = (1/2) (26 + 19 +   18 + 27 + 12 + 12) = 57

that checks!

a is the right answer