NCERT Exemplar Solutions
Class 6 - Mathematics - Unit 4: Fractions & Decimals - Problems and Solutions
Question 99

Question. 99

Subtract \(1\dfrac{1}{4}\) from \(6\dfrac{1}{2}\).

Answer:

\(5\dfrac{1}{4}\)

Detailed Answer with Explanation:

Goal: Find \(6\dfrac{1}{2} - 1\dfrac{1}{4}\).

  1. Change mixed numbers to improper fractions.

    \(6\dfrac{1}{2} = \dfrac{13}{2}\)

    \(1\dfrac{1}{4} = \dfrac{5}{4}\)

  2. Make the denominators the same. LCM of 2 and 4 is 4.

    \(\dfrac{13}{2} = \dfrac{26}{4}\)

  3. Subtract the fractions (same denominator).

    \(\dfrac{26}{4} - \dfrac{5}{4} = \dfrac{21}{4}\)

  4. Convert the improper fraction to a mixed number.

    Divide: \(21 \div 4 = 5\) remainder \(1\).

    So, \(\dfrac{21}{4} = 5\dfrac{1}{4}\).

  5. Answer: \(5\dfrac{1}{4}\).

NCERT Exemplar Solutions Class 6 – Mathematics – Unit 4: Fractions & Decimals – Problems and Solutions | Detailed Answers