What’s the Error? Chhaya simplified a rational number in this −25 −5 manner = . What error did the student make? −30 6 RATIONAL NUMBERS 253 15-04-2018 MATHEMATICS (D) Applications 1. Moving from start to finish by going from smaller to bigger rational numbers. Start 2. Replace ‘*’ by inserting an appropriate rational number between the given rational numbers. 15-04-2018 UNIT 8 3. Three monkeys are climbing upstairs. They can only move ahead if they eat a banana with the common factor of their numerator and denominator on it. Which of the three monkeys will be able to reach till the end? 4. Crossword Puzzle Solve the given crossword and then fill up the given boxes. Clues are given below for across as well as downward filling. Also, for across and down clues. clue number is written at the corner of boxes. Answers of clues have to be filled in their respective boxes. 2 −5 Down 1: and are numbers. 3 4 a a Down 2: The inverse of is − . f f Down 3: The addition and multiplication of whole numbers, integers and rational numbers is Down 4: Since, is not defined, hence 0 has no . RATIONAL NUMBERS 255 15-04-2018 MATHEMATICS Down 5: Reciprocal is also known as multiplicative . Down 6 : The number line extends on both the sides. Down 7: The of two integers may not lead to the formation of another integer. Down 8: The multiplication of a number by its reciprocal gives . Across 1: There are rational numbers between two integers. Across 2: The multiplication of rational numbers is commutative and . Across 3: The addition and of two whole numbers lead to the formation of another whole number. Across 4: All the positive integers excluding 0 are known as numbers. Across 5: For any rational number a; a ÷ 0 is . Across 6: Rational numbers can be represented on a line. 15-04-2018
Show answer
She divided numerator by 5 but denominator by –5 OSKNRKPNOV −2