1 is 3/3 shorter than 5m, 1 is (5/9) m, and 5m/5 is 3/ 10) m longer than (3/ 10) m. ..

2. The sum of the simplest true fractions whose denominator is 10 is (2).

Of the four scores of 3.7/8, 1/3, 2/9 and 12/03, the unit score is (1/3) and the value score is (12/ 13).

4. Write three true fractions (2/3), (3/5) and (5/6). The fractional value is more than half of 1 and the denominator is less than 7.

Second, the judgment question.

1, 0 of 65438+4 plus 0 of 65438+4 =1/2 (√).

03 of 2.65438+7 is the simplest score (√).

3,4/5-(7/00 of 65438+02+0 of 65438) = 4/5-7/00 of 65438+02+0(x)

4. Half1+91-21+91=1(×)

Third, column calculation.

What is the number that 1. is 5/8 more than the sum of 5/2 and 3/4 of 12?

5/ 12+3/4+5/8= 1 and 19/24

2. What is the difference between15 minus 7 out of 6 and 3 out of 20?

5/6-(7/ 15-3/20)= 1 1/20

Fourth, mathematical application problems.

1. A pulverizer processes 3/4 tons of feed on the first day, and the second day is more than the first day 1 ton. How many tons of feed will be processed the next day?

3/4+ 1/5= 19/20 (ton)

A: The feed was processed the next day 19/20 tons.

2. Nursery pupils spend 3/2 hours watching three cartoons, the first one needs 1.2 hours, the second one needs 1 hour, and how many hours does the third one need?

3/2-5/ 12- 1/3=3/4 (hours)

A: The third one took 3/4 hours.

3. A tractor cultivates 4/5 hectares in the morning, and cultivates more in the afternoon than in the morning 10 hectares. How many hectares of arable land are there on this day?

4/5+110+4/5 =17/10 (hectare)

A: On this day, * * * cultivated land 17/ 10 hectares.

4. Drink milk.

Father drank 1 liter, mother drank 1/5 liter, and son drank 1 liter.

(1) How many liters of milk did three people drink?

(2) How many liters is left in this box of 1 liter milk?

1/4+ 1/5+ 1/4 = 7/ 10(L)

1-7/10 = 3/10 (length)

A: Three people drank 7/ 10 liters of milk. This box of 1 liter milk has 3/1liter left.

5. In the first half of last year, Limin Fertilizer Plant completed two thirds of the annual plan, and in the second half of last year, it completed 7/ 10. How many points did you exceed last year's annual plan?

2/3+7/ 10- 1= 1 1/30

A: Last year, 1 1/30 of the annual plan was exceeded.