Предмет: Алгебра, автор: lera1112

$frac{4a}{25}- frac{4a}{35}+ frac{8a}{21}$ помогите пожалуйста как можно все расписано ПОЖАЛУЙСТА просто я не была в школе

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Автор ответа: Аноним

0

ОЗ 5*5*7*3=525
(4а*21-4а*15+8а*25)/525=(84а-60а+200а)/525=224а/525=32а/75
Сократили на 7

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