Remember....
 A fraction means a part of a group or of a region.
5
is a fraction. We read it as "fivetwelfths". 12  Here "12" stand for the number of equal parts into which the whole has been divided.
 And "5" stand for the number of equal parts which have been taken out.
 Here 5 is called the numerator and 12 is called the denominator.
 
 
 
 
 
 
 
 
 
 

 
 
 

 3. Identify the error, if any.
 Answer:
 Which is not true as all the portions are not equal .
 Which is not true as all the portions are not equal .
 Which is not true as all the portions are not equal .
 4. What fraction of a day is 8 hours? Answer:We know numbers of hours in 1 day=24
8  1  
∴ 8 hours=  days=  days  
24  3 
40  2  
40 minutes=  hours =  hours  
60  3 
 (a) How can Arya divide his sandwiches so that each person has an equal share?
 (b) What part of a sandwich will each boy receive?
 Answer: (a) Arya will divide each sandwich into three equal parts, and give one part of each sandwich to each one of them
 (b) When we divide each of 2 sandwiches into 3 equal parts. We have 6 pieces in total. Every one of them will get 2 pieces each out of 6 pieces.
2  1  
∴ Part of a sandwich will each boy receive  =  
6  3 
 Answer:
 The numbers of dresses, Kanchan had to dye = 30
 The numbers of dresses, She has so far finished =20
20  2  
The fraction of dresses has she finished so far  =  
30  3 
The natural numbers from 2 to 12 : 2,3,4,5,6,7,8,9,10,11,12  
Out of these prime numbers are : 2, 3, 5, 7, 11  
Total numbers of natural numbers from 2 to 12 = 11  
Total numbers of prime numbers from 2 to 12 = 5  
5  
Fraction of numbers which are prime numbers from 2 to 12 =  
11 
The natural numbers from 102 to 113 : 102,103,104,105,106,107,108,109,110,111,112, 113  
Out of these prime numbers are : 103, 107, 109, 113  
Total numbers of natural numbers from 102 to 113 = 12  
Total numbers of prime numbers from 102 to 113 = 4  
4  
Fraction of numbers which are prime numbers from 102 to 113=  
12 
Answer:

Answer:
The numbers of CDs she bought= 3  
The numbers of CDs she received as gift = 5  
Total numbers of CDs she have = 8  
3  
Fraction of CDs she bought =  
8  
5  
Fraction of CDs she bought =  
8 
question no.8 answer is wrong because 109 is a prime number so pls rectify the answer of it. Thank you
ReplyDelete109 is a prime number however 111 is not a prime number. So answer is correct, explanation is incorrect.
ReplyDeleteThanks Niraj, Correction done.
ReplyDelete