1 7/5>7/3, 16/7<16/11 9/4<5/4 17/15>22/15

2 9/8 >6/5 3/1<7/3 5/2>10/3 8/5<10/7

3 Larger than 4/1 are: 8 /3 3/1 7/2 10/3 Less than 4/1 are: 5/1 16/3 9/2

4 5/3>2/1 So Uncle Lee is good.

5 4/1=8/2 <8/3 So sleeps more.

6 3/1=75/25 5/1=75/15 25/3=75/9 3/1>5/1>25/3 So Asia is the biggest and South America is the smallest

7 5/3>4/1 So there are more 0 cards.

8 Because 12/7>4/1>6/1 so you should buy science

9 20/13<10/7<5/4 18/7<6/5<12/11 6/7<4/5 <3/4

10 According to the basic property of fractions: the denominator and numerator of a fraction are multiplied and divided by the same number (0). multiplied and later divided by the same number (except 0), the value of the fraction remains the same. Since 6/1=120/20 5/1=120/24 there are 120/21,120/22 120/23