Francesca
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A fraction represents a part of a whole or group. The numerator tells how many parts are being used, and the denominator says how many equal parts make up the whole. To convert a fraction to a decimal, divide the numerator by the denominator. To convert a decimal to a fraction, use the place value of the decimal as the denominator and the whole number as the numerator. When adding or subtracting fractions, find a common denominator to write equivalent fractions with the same denominator before combining numerators. Multiplying fractions is done by multiplying the numerators and denominators, while dividing fractions uses the reciprocal of the divisor to write the problem as a multiplication.
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1) A fraction consists of a numerator and denominator, with the numerator representing the number of equal parts and the denominator representing the number of equal wholes.
2) To convert a fraction to a decimal, divide the numerator by the denominator and add zeros after the decimal point if there is a remainder.
3) To add or subtract fractions, find a common denominator and then add or subtract the numerators, leaving the denominator the same.
Fractions
Fractions can represent parts of a whole that is divided into equal sections. A fraction has a numerator above the line and a denominator below. Equivalent fractions have the same value even if they look different. Mixed numbers contain a whole number and fraction, while improper fractions are larger than 1. To add or subtract fractions, their denominators must be the same, so they may need to be converted to an equivalent form by multiplying the numerator and denominator by the same number.
add sub fractions.pptx
This document provides information on various fraction concepts and operations including:
1) Adding similar fractions by adding the numerators and copying the denominators.
2) Multiplying fractions by multiplying the numerators and denominators.
3) Dividing fractions by changing the second fraction to its reciprocal and multiplying.
4) Performing operations on decimals by aligning the decimal points and applying the same rules as whole numbers.
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Francesca
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