Fractional numbers

1. FRACTIONAL NUMBERS

2. What Are Fractional Numbers? Fractional numbers are those numbers which divides 2 things like- It is a circle & It is half of the circle

3. Comparison of Fractions Pizza 1 2 parts Each part = 1/2 Pizza 2 4 parts Each part = 1/4

4. Questions Q1. Write >, < or = in the space provided. 4/7 3/7 11/15 11/16 9/11 11/10

5. Q.2 Arrange in ascending order 1/5, 2/15, 3/10, 7/20 Ans. b. 3/4, 9/10, 5/8 Ans. 5/6, 7/12, 9/12 Ans.

6. Q.2 Arrange in descending order 9/20, 4/15, 7/40, 7/10 Ans. b. 7/12, 9/24, 11/24 Ans. 2/3, 11/12, 5/6 Ans.

7. Addition of Fractions How to do add the fractions Step 1. find the LCM of the denominators Step 2. change into equivalent fraction Step 3. find the sum of the numerators Step 4. reduce to the simplest form

8. Questions Q. 1 Add the following fractions 2/3 and 3/4 Ans. b. 2 7 / 12 and 3 4 / 9 Ans. c. 2 7 / 8 and 3 3 / 16 Ans.

9. Subtraction of Fractions How to do subtract the fractions Step 1. find the common denominator, i.e. fid the LCM of the denominators Step 2. change the given fraction into equivalent fractions with common denominator Step 3. subtract the new numerators and write the numerator as the difference of the numerators of fractions Step 4. the common denominator is the denominator of the fraction Step 5. if the difference is an improper fraction, change it into a mixed fraction

10. Questions Q. 1 Find the difference 3/10 and 2/15 Ans. b. 11/12 and 5/6 Ans. c. 1 2 / 6 and 3/4 Ans.

11. Q. 1 Subtract 7/12 from 6/9 Ans. b. 7/21 from 16/27 Ans. c. 1/2 from 5/8 Ans.

12. Multiplication of Fractions How to multiply the fractions Step 1. write the whole number as a fraction Step 2. multiply the numerators Step 3. multiply the denominators Step 4. divide

13. Questions Q. 1 Multiply 24 by 1/3 Ans. b. 72 by3/8 Ans. c. 2/3 by 1 1 / 3 Ans.

14. Q. 1 Find the product 5/12 x 3/40 Ans. b. 1 2/ 3 x 3 3 / 4 Ans. c. 2 2 / 3 x 8 1 / 4 Ans.0

15. Multiplicative inverse or reciprocal If the product of two numbers is one, then each is called inverse of the other reciprocal of the other. E.g.. 3 x 1/3 = 1

16. Questions Q. 1 Fill in the blanks Reciprocal of 12/9 is ____________ b. Multiplicative inverse of 1 is _______ c. Multiplicative inverse of ___________ does not exist.

17. Division of Fractions Lavika

18. Questions Q. 1 Divide 3/5 by 3 Ans. 3/2 by 3 Ans. 8/15 by 4 Ans.

19. Q. 2 Find the quotient 2/5 ÷ 7/5 Ans. 7/10 ÷ 9/10 Ans. 5/6 ÷ 10 Ans.