The false scores of 2,3 and 1 1/7 are (165438+40/0); The reciprocal of 3 7/4 is (7 out of 25).

3,2 and 3/2 hours =( 160) minutes; 2 years and 3 months =(2 1/4 1) years are expressed in fractions.

4, 16/(28)= 1 and 4/3=(28)/49.

5、3÷4=20/( 15)=( 12)/9

6. The simplest score: 1 hour 18 minutes (65438+3/00).

6. 1 and 3/ 1 = (4/3) False score 3/8=(2 and 2/3) Band score.