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            <video:title>Soustraire 3/4-5/8 à l&#39;aide d&#39;un schéma</video:title>
            <video:description>On soustrait deux fractions qui n&#39;ont pas le même dénominateur, 3/4 et 5/8.  On trouve  d&#39;abord un même dénominateur en s&#39;aidant d&#39;un schéma qui nous permet de visualiser la différence. </video:description>
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            <Attribute name="description">Pour additionner des fractions de dénominateurs différents en les réduisant au même dénominateur, voici les étapes à suivre. 1 : Calculer le PPCM des dénominateurs et le choisir comme dénominateur commun. 2 : Additionner les numérateurs des fractions qui ont maintenant le même dénominateur. 3 : Simplifier si besoin la fraction obtenue. </Attribute>
            
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            <video:title>Additionner des fractions de dénominateurs différents </video:title>
            <video:description>Pour additionner des fractions de dénominateurs différents en les réduisant au même dénominateur, voici les étapes à suivre. 1 : Calculer le PPCM des dénominateurs et le choisir comme dénominateur commun. 2 : Additionner les numérateurs des fractions qui ont maintenant le même dénominateur. 3 : Simplifier si besoin la fraction obtenue. </video:description>
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            <Attribute name="description">Pour soustraire des fractions de dénominateurs différents en les réduisant au même dénominateur, voici les étapes à suivre. 1 : Calculer le PPCM des dénominateurs et le choisir comme dénominateur commun. 2 : Soustraire les numérateurs des fractions qui ont maintenant le même dénominateur. 3 : Simplifier si besoin la fraction obtenue. </Attribute>
            
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            <video:title>Soustraire des fractions de dénominateurs différents</video:title>
            <video:description>Pour soustraire des fractions de dénominateurs différents en les réduisant au même dénominateur, voici les étapes à suivre. 1 : Calculer le PPCM des dénominateurs et le choisir comme dénominateur commun. 2 : Soustraire les numérateurs des fractions qui ont maintenant le même dénominateur. 3 : Simplifier si besoin la fraction obtenue. </video:description>
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            <video:title>Exercice concret : La peinture</video:title>
            <video:description>On résout un problème concret d&#39;addition de deux volumes de peinture exprimés sous forme de fractions de dénominateurs différents. On décompose le problème étape par étape, en cherchant d&#39;abord un dénominateur commun aux deux fractions.</video:description>
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            <video:duration>347</video:duration>
            <video:category>Additions et soustractions de fractions avec des dénominateurs différents</video:category>
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        <lastmod>2024-09-03T07:47:21.617073649Z</lastmod>
        
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            <video:description>On résout un problème concret de la différence de deux hauteurs  de plants de tomate exprimées sous forme de fractions de dénominateurs différents.</video:description>
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                    href="https://es-cl.khanacademy.org/math/cc-fifth-grade-math/imp-fractions-3/imp-visually-adding-and-subtracting-fractions-with-unlike-denominators/e/estimate-to-add-and-subtract-fractions-with-different-denominators" />
        
        <xhtml:link rel="alternate" hreflang="fr"
                    href="https://fr.khanacademy.org/math/be-1ere-secondaire2/xe5303a9b201c0f84:nombres-les-fractions/xe5303a9b201c0f84:decomposition-addition-et-soustraction-de-fractions/e/estimate-to-add-and-subtract-fractions-with-different-denominators" />
        
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        <xhtml:link rel="alternate" hreflang="uk"
                    href="https://uk.khanacademy.org/math/matematika-5-6-nus/x654235e57a958b89:zvichain-drobi-z-rznimi-znamennikami/x654235e57a958b89:dodavannya-ta-vdnmannya-z-rznimi-znamennikami/e/estimate-to-add-and-subtract-fractions-with-different-denominators" />
        
        <lastmod>2026-02-12T09:11:39.574764935Z</lastmod>
        
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            <Attribute name="title">S&#39;aider d&#39;un dessin pour déterminer l&#39;ordre de grandeur de la somme ou de la différence  de deux fractions</Attribute>
            
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