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julia543
@julia543
July 2022
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Упрости выражение b-5/6b+1/4b и найди его значение при b=4 4/5
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гюйс
Verified answer
(b-5)/6b +1/4b=(2(b+5)+3)/12b=(2b+13)/12b
при b=4 4/5
(2 *4 4/5 +13)/(12 *4 4/5)=6
1) 2*4 4/5=2 * 24/5=48/5=9 3/5
2) 9 3/5+13=22 3/5
3) 12 *4 4/5=12 * 24/5=288/5=57 3/5
4) 48/5 : 288/5=48/5 * 5/288=6
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Answers & Comments
Verified answer
(b-5)/6b +1/4b=(2(b+5)+3)/12b=(2b+13)/12bпри b=4 4/5
(2 *4 4/5 +13)/(12 *4 4/5)=6
1) 2*4 4/5=2 * 24/5=48/5=9 3/5
2) 9 3/5+13=22 3/5
3) 12 *4 4/5=12 * 24/5=288/5=57 3/5
4) 48/5 : 288/5=48/5 * 5/288=6