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Comprehensive exercise of application problems of fractional multiplication and division in the first volume of sixth grade mathematics
1.240 ÷ 4/5 = 300 people

2. It has traveled 280×5/7=200 kilometers, and it is still 280-200=80 kilometers away from B city.

3. I read 96X 1/8= 12 on the first day, 12X2/3=8 on the second day, and 12+8=20 two days ago. So the third day starts from 2 1 page.

4. One ***= 1/5+3/8=23/40 Remaining =600x( 1-23/40)=255 cases.

5.2 16*( 1+2/9)=286

6. Simple questions are rarely noticed on the Internet. If you really don't understand them, remember the steps and methods:

1, find what is 1 of 27 (5400/27=200).

2. What are the two 27 1 (2*200=400).

3. Row type: 5400 trees /27*2*9=3600 trees.

Answer: 3,600 trees were planted in 9 days.

7. Yes: 16 participated in the music and dance class.

Yes: 30 people participated in painting and calligraphy.

Participants in these two types of activities are:

30+ 16-(48-5)

=3 people

8.36x ( 1-2/3) = 12km。

9. Grade 6 homework: (450-90) × [4/(2)-3)-4]

=360×﹙4/9)

= 160 (Ben)

10.4.6 divided by (1-3/5) =11.5 You can set the original cost to X yuan, and x-3/5x=4.6 to calculate X =1/kloc-0.

1 1. Unit * * Employees: 60/(8/15-2/15) =150 (person) Middle-aged employees are150x5//.

12. The next day = 220× (1-1/4 )× (4/15) = 44 sets.

13.26 ÷ [1/3+(1-kloc-0//3) × 4/5] = 78 ÷ [1+1.6).

14. A * * * (24-12) ÷ (1-2/5-1/3)

= 12÷4/ 15

=45 packs

45×(2/5+ 1/3)- 12

=45× 1 1/ 15- 12

=33- 12

=2 1 bag

A * * * Take out 45-24=2 1 bag.

15. A: B = 3: 2 = 6: 4.

B: C = 4: 1

Namely: A: B: C = 6: 4: 1.

b = 1 10×4/(6+4+ 1)= 40。

16. Last year =220÷( 1+2/9)= 180 trees.

17.280/(1+2/5) = 200 cases.

18.200 ÷ 2 =100m

Length: 100× 3/(3+2) = 60m.

Width: 100× 2/(3+2) = 40m.

Area: 60×40=2400 square meters

19. Let the total length be x, then (4/5)x-20=220 (4/5)x=240 x=300.

20. 1.7÷( 1/2-3/7) = 1.7÷ 1/ 14 =23.8

21.1200 ÷ (2/3-3/5) × 2/5 = 7200 kg

22. Solution: We assume that there are 5/7x boys and x girls.

5/7x=(x+ 15)x2/3

5/7x=2/3x+ 10

5/7x- 1/3x= 10

1/2 1x= 10

x=2 10

2 10x5/7= 150 (person)

23. A 30-ton 30 *110 = 3 (ton)

30-3=3+ B warehouse inventory

Inventory in warehouse B =30-3-3=24 tons.

Party A ***30+24=54 tons

Equation:

Set up warehouse B to store X tons of grain.

30-3=X+3

The solution is X=24.

Another warehouse has 30 tons of grain.

* * * Stored grain 30+24=54 tons.

24.138 * 5/6 =115 people (number of subscribers to Youth Daily)

138 * 2/3 = 92 people (the number of students who ordered the composition)

115+92-138 = 69 people (the number of people booked by both)

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