Exercise book! 48 / 56 minimalist score! Fifty six out of 48! Which is the simplest score? 11 out of 22, 4 out of 9, 12 out of 15, 9 out of 72, 14 out of 15, 16 out of 27, 19 out of 57, 5 out of 12? And turn the rest into the simplest score Multiplication sign: ×, division sign: △, please write the process (write the multiplication or division sign beside, please copy!

Exercise book! 48 / 56 minimalist score! Fifty six out of 48! Which is the simplest score? 11 out of 22, 4 out of 9, 12 out of 15, 9 out of 72, 14 out of 15, 16 out of 27, 19 out of 57, 5 out of 12? And turn the rest into the simplest score Multiplication sign: ×, division sign: △, please write the process (write the multiplication or division sign beside, please copy!

56/48=56÷8/48÷8=7/6
11/22=11÷11/22÷11=1/2
4 / 9 is the simplest fraction
12/15=12÷3/15÷3=4/5
9/72=9÷9/72÷9=1/8
14 / 15 is the simplest fraction
16 / 27 is the simplest fraction
19/57=19÷19/57÷19=1/3
5 / 12 is the simplest fraction

1. Write the greatest common factor of the numerator and denominator of the following fraction
6 / 9 () 12 / 16 () 42 / 60 () 30 / 45 () 4 / 12 ()
2. About points
10 out of 34 () 14 out of 16 () 63 out of 72 () 75 out of 100 () 18 out of 12 ()
3, 14 of 35 = () 8 of 12 = () 32 of 64 = () 18 of 24 = () 9 of 27 = () 26 of 52 = ()
4. Correction
12 out of 21 = 12 / 6 21 / 7 = 2 out of 3 (wrong or right?)
Wrong correction
6. Greater than and less than
one
4 out of 14, 16 out of 28
16 out of 3.24
20 out of 40, 4 out of 30
5.2 and 1 / 3 ② and 5 / 15
12 out of 6.28, 4 out of 7
Six challenges
What is the simplest fraction of 19991999999?

1. Write the greatest common factor of the numerator and denominator of the following fraction
6 / 9 (3) 16 / 12 (4) 60 / 42 (6) 45 / 30 (15) 5 / 4 (1) 12 / 4 (4)
2. About points
10 out of 34 (5 out of 17)
25 out of 20 (5 out of 4)
14 out of 16 (7 out of 8)
63 out of 72 (7 out of 8)
75 out of 100 (3 out of 4)
18 out of 12 (3 out of 2)
3,14 out of 35 = (2 out of 5)
8 out of 12 = (2 out of 3)
32 out of 64 = (1 out of 2)
18 out of 24 = (3 out of 4)
9 out of 27 = (1 out of 3)
26 out of 52 = (1 out of 2)
4. Correction
12 out of 21 = 12 / 6 wrong 12 out of 21 = 12 / 21 = 4 / 7
21 / 7 = 2 / 3 (wrong or right?) wrong 21 / 7 = 3
6. Greater than and less than
3 out of 1.5 = 9 out of 15
4 out of 14 < 16 out of 28
16 out of 24 > 4 out of 16
20 out of 40 > 4 out of 10
5.2 and 1 / 3 = 2 and 5 / 15
12 out of 6.28 < 4 out of 7
Six challenges
What is the simplest fraction of 19991999999?
199919999999999 of 20012001 = 1999 of 2001