Fill in ＞＜ or = 2 / 103 / 28 / 3010 / 76 / 504 / 37 / 203 / 1

1 in 2, 7 in 20
two-sevenths

2 out of 5 = 4: () 8 out of 20 = () 24 out of 4: () = 1 out of 2: 8 0.5: (= 4:5, 4 out of 5: () = 10 out of 2, 12:16 = 3: ()
2 of 5 = 4: () 8 of 20 = () 24 of 4: () = 1 of 2:8 0.5: (= 4:5 4 of 5: () = 10:2 1 12:16 = 3: () 3:15 = (): 5150:200 = () 30.5: () = 1:5144:36 = (): 110:7 = 2: () 5 of 5 () = 8 of 4 15 = 0.6 of 4（）16:4 = (): 0.5 2:18 = (): 6 of 9:3 = 8:72: () = 18:60.6:0.8 = (): 40.5:0.6 = 25: () 3 times () = 18 times 3, 1 of 4:8 = 1 of 10 32 * () = 4 * 8 (): 4 = 80:20 11: () = 9:27 2.7:0.3 = 63: () 9 * () = 3 * 36 1.2 * () = 42:7 2.6 5.2 = 8.2 ()

2 out of 5 = 4: (1.6)
8 out of 20 = (24 out of 60)
1:4: (4) = 1:8
0.5:( 0.625 ) =4:5
4 / 5: (1 / 25) = 10:1 / 2
12:16=3:( 4 )
3:15=( 1 ):5
150:200 = (3 / 4)
0.5:(2.5 )=1:5
144:36=( 4 ):1
10:7=2:( 1.4 )
10 out of 5 = 8 out of 4
15 of 4 = 0.6 (2.25)
16:4=( 2 ):0.5
2:18=( 1 ):9
6 out of 3 = 9.6 out of 8
72:( 24 )=18:6
0.6:0.8=( 3 ):4
0.5:0.6=25=25:( 30 )
3 times (18) = 18 times 3
1 / 4:1 / 8 = (1 / 5): 1 / 10
32*(1)=4*8
( 16 ):4=80:20
11:( 33 )=9:27
2.7:0.3=63:(7)
0.9*( 120)=3*36
1.2*(5)=42:7
5.2 of 2.6 = 16.4 of 8.2

(1/2+1/4+1/6+1/8)-(1/3+1/6+1/9+1/12)+(1/4+1/8+1/12+1/16)-(1/5+1/10+1/15+1/20)=

Hello: (1 / 2 + 1 / 4 + 1 / 6 + 1 / 8) - (1 / 3 + 1 / 6 + 1 / 9 + 1 / 12) + (1 / 4 + 1 / 8 + 1 / 12 + 1 / 16) - (1 / 5 + 1 / 10 + 1 / 15 + 1 / 20) = 1 / 2 (1 + 1 / 2 + 1 / 3 + 1 / 4) - 1 / 3 (1 + 1 / 2 + 1 / 3 + 1 / 4) + 1 / 4 (1 + 1 / 2 + 1 / 3 + 1 / 4) - 1 / 5 (1 + 1 / 2 + 1 / 3 + 1 / 4) = (1 + 1 / 2 + 1 / 3 + 1 / 4) (1 / 2-1 / 3 + 1 / 4 -

How to solve (1 / 2 + 1 / 4 + 1 / 6 + 1 / 8) - (1 / 3 + 1 / 6 + 1 / 9 + 1 / 12) + (1 / 4 + 1 / 8 + 1 / 12 + 1 / 16) - (1 / 5 + 1 / 10 + 1 / 15 + 1 / 20)?

(1/2+1/4+1/6+1/8)-(1/3+1/6+1/9+1/12)+(1/4+1/8+1/12+1/16)-(1/5+1/10+1/15+1/20）
=1/2×(1+1/2+1/3+1/4)-1/3×(1+1/2+1/3+1/4)+1/4×(1+1/2+1/3+1/4)-1/5×(1+1/2+1/3+1/4)
=（1/2-1/3+1/4-1/5）×(1+1/2+1/3+1/4)
=13/60×29/12
=377/720

What is the law between 1,3,2,6,4,9,8,12,16

1,2,4,8... On odd digit are equal ratio sequence with first term of 1 and common ratio of 2
Even digit 3,6,9,12... Is the arithmetic sequence with 3 first term and 3 tolerance

In 4 out of 7, 6 out of 9, 3 out of 10, 8 out of 10, 5 out of 12 and 15 out of 40, the simplest scores are as follows:

4/7 3/10 5/12

4 out of 7, 6 out of 9, 5 out of 12, 15 out of 40

4 out of 7 and 5 out of 12 are the simplest fractions

20 divided by (7 / 9 + 1) 8 / 7 divided by 7 / 8

20 divided by (7 / 9 + 1) 8 / 7 divided by 7 / 8
=20÷(7/9+1) =8/7×8/7
=20÷16/9 =64/49
=20×9/16
=45/4

7 / 9 * (1 divided by 7 / 8 + 8 / 7 divided by 1)

9/16

Fill in ＞＜ or = 2 / 103 / 28 / 3010 / 76 / 504 / 37 / 203 / 1