{"schema_version":3,"id":"home-frac-012","url":"/questions/home-frac-012/","theme":"fractions","parcours":"commun|spe|ens_sci|techno","niveau":2,"type":"qcm","consigne":"Retrouve le total à partir de la fraction connue.","amorce":"21 représente \\(\\frac{3}{5}\\) de quel nombre ?","choices":["35","7","63","105"],"reponse":"35","correction":{"repere":"La quantité 21 représente 3 parts sur 5 parts égales du total recherché.","agis":"Divise 21 par 3 pour trouver une part, puis multiplie par 5 pour retrouver le total.","pourquoi":"3 parts valent 21, donc une part vaut 21 ÷ 3 = 7 ; les 5 parts du total valent 7 × 5 = 35.","verification":"Recalcule \\(\\frac{3}{5}\\) du total trouvé : 35 ÷ 5 × 3 = 21."},"empreinte":"74b5c901b23fa88c1cd09a80cd2f4f560806bcd8dcb0a222c17350acf77b98bd","canonical_url":"https://unpointdeplus.com/questions/home-frac-012/","memberships":[{"set_id":"fractions-quantites","titre":"Fractions : de la part au total","etape":"Transférer aux cinquièmes","position":12,"total":12,"set_url":"https://unpointdeplus.com/sets/fractions-quantites/","url":"https://unpointdeplus.com/questions/home-frac-012/"}],"navigation":{"set_id":"fractions-quantites","titre":"Fractions : de la part au total","position":12,"total":12,"revision":"1-46d6396235c5fb9155e1afe9-nav-4f53cda18c2baa0c","up":{"kind":"set","id":"fractions-quantites","label":"Présentation du set","url":"https://unpointdeplus.com/sets/fractions-quantites/"},"previous":{"kind":"question","id":"home-frac-011","label":"← Question précédente","url":"https://unpointdeplus.com/questions/home-frac-011/"},"next":{"kind":"set_end","id":"fractions-quantites","label":"Continuer","url":"https://unpointdeplus.com/sets/fractions-quantites/fin/"}}}