Let's simplify 20 ÷ 7 1 4 × 3 5 .

Given that to simplify 20 ÷ 7 1 4 × 3 5 First convert mixed fraction into improper fraction. 20 ÷ 7 1 4 × 3 5 = 20 ÷ 29 4 × 3 5 To divide two fractions find the reciprocal of the second fraction. Multiply the first fraction with the reciprocal of the second fraction. 20 ÷ 29 4 × 3 5 = 20 × 4 29 × 3 5 = 4 × 4 29 × 3 1 = 48 29 Hence, the required answer is 48 29 .

Let's simplify 3 . 15 ÷ 2 . 5 .

Given that to simplify 3 . 15 ÷ 2 . 5 First, convert a decimal number into fraction 315 100 ÷ 25 10 To divide two fractions find the reciprocal of the second fraction. Multiply the first fraction with the reciprocal of the second fraction. 315 100 ÷ 25 10 = 315 100 × 10 25 = 63 10 × 1 5 = 63 10 × 1 5 × 2 2 = 126 100 = 1 . 26 Hence, the required answer is 1 . 26 .

Let's simplify 35 . 4 ÷ 0 . 03 × 0 . 06 .

First, convert a decimal number into fraction To divide two fractions find the reciprocal of the second fraction. Multiply the first fraction with the reciprocal of the second fraction. 35 . 4 ÷ 0 . 03 × 0 . 06 = 354 10 ÷ 3 100 × 6 100 = 354 10 × 100 3 × 6 100 = 354 10 × 1 1 × 2 1 = 354 5 × 1 1 × 1 1 = 354 5 × 2 2 = 708 10 = 70 . 8 Hence, the required answer is 70 . 8 .

Let's simplify 2 . 5 × 6 ÷ 0 . 5 .

First, convert a decimal number into fraction To divide two fractions find the reciprocal of the second fraction. Multiply the first fraction with the reciprocal of the second fraction. 2 . 5 × 6 ÷ 0 . 5 = 25 10 × 6 ÷ 5 10 = 25 10 × 6 × 10 5 = 25 10 × 6 × 2 = 25 10 × 12 = 25 5 × 6 = 5 × 6 = 30 Hence, the required answer is 30 .

E M B I B E

GANITPRABHA (MATHEMATICS TEXT BOOK) CLASS 7>Chapter 1 - Revision of Previous Knowledge>Let's workout

West Bengal Board Solutions for Chapter: Revision of Previous Knowledge, Exercise 3: Let's workout

Author:West Bengal Board

West Bengal Board Mathematics Solutions for Exercise - West Bengal Board Solutions for Chapter: Revision of Previous Knowledge, Exercise 3: Let's workout

Attempt the practice questions on Chapter 1: Revision of Previous Knowledge, Exercise 3: Let's workout with hints and solutions to strengthen your understanding. GANITPRABHA (MATHEMATICS TEXT BOOK) CLASS 7 solutions are prepared by Experienced Embibe Experts.