The document RD Sharma Solutions - Ex-2.3, Fractions, Class 7, Math Class 7 Notes | EduRev is a part of the Class 7 Course RD Sharma Solutions for Class 7 Mathematics.

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**Find the reciprocal of each of the following fractions and classify them as proper, improper and whole numbers:**

Reciprocal of a non-zero fraction a/b is b/ a

(i)

Reciprocal of 3/7 is 7/3 It's improper fraction because numerator is greater than denominator

(ii)

Reciprocal of 5/8 is 8/5

It's improper fraction because numerator is greater than denominator

(iii)

Reciprocal of 9/7 is 7/9

It's proper fraction because numerator is less than denominator

(iv)

Reciprocal of 6/5 is 5/6

It's proper fraction because numerator is less than denominator

(v)

Reciprocal of 12/7 is 7/12

It's proper fraction because numerator is less than denominator

(vi)

Reciprocal of 1/8 is 8/1=8

It is a whole number

**Divide:**

(ii)

(iii)

(iv)

**Divide:**

**(i) 3/8 by 4 (ii) 9/16 by 6 (iii) 9 by 3/16 (iv) 10 by 100/3**

(i)

(ii)

(iii)

(iv)

**Simplify:**

**(i)**

(ii)

(iii)

(iv)

**A wire of length is cut into 10 pieces of equal length. Find the length of each piece.**

Length of one piece =

**The length of a rectangular plot of area ** What is the width of the plot?

Area of rectangle = Length of rectangle Ã— Width of rectangle

Ã—Width of the rectangle

Width of the rectangle =

**By what number should be multiplied to get **

Let the required number be *x*.

According to the question:

**The product of two numbers is If one of the numbers is find the other.**

Let the required number be *x*.

According to the question:

**The cost of kg of apples is Rs 400. At what rate per kg are the apples being sold?**

Cost of 25/4 kg of apples = Rs. 400

Cost of 1 kg of apples =

**By selling oranges at the rate of Rs **** per orange, a fruit-seller gets Rs 630. How many dozens of oranges does he sell?**

**Cost of 1 orange = **

Number of oranges sold =

**In mid-day meal scheme 3/10 litre of milk is given to each student of a primary school. If 30 litres of milk is distributed every day in the school, how many students are there in the school?**

**Answer 11:**

**Number of students in the school =**

**In a charity show Rs 6496 were collected by selling some tickets. If the price of each ticket was Rs **** how many tikets were sold?**

Number of tickets sold =

Number of tickets sold =