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Fractions and Chapter 2

Fractions AND INTRODUCTIONYou have learnt Fractions and decimals in earlier classes. The study of Fractions includedproper, improper and mixed Fractions as well as their addition and subtraction. We alsostudied comparison of Fractions , equivalent Fractions , representation of Fractions on thenumber line and ordering of study of decimals included, their comparison, their representation on the numberline and their addition and shall now learn multiplication and division of Fractions as well as of HOW WELL HAVE YOU LEARNT ABOUT Fractions ?A proper fraction is a fraction that represents a part of a whole. Is 74a proper fraction?Which is bigger, the numerator or the denominator?An improper fraction is a combination of whole and a proper fraction. Is 74 animproper fraction? Which is bigger here, the numerator or the denominator?

2.3.1 Multiplication of a Fraction by a Whole Number Observe the pictures at the left (Fig 2.1). Each shaded part is 1 4 part of a circle. How much will the two shaded parts represent together? They will represent 1 1 4 4 + = 1 2× 4. Combining the two shaded parts, we get Fig 2.2 . What part of a circle does the shaded part in Fig 2.2 ...

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