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valeriatopalova0721
@valeriatopalova0721
July 2022
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Номер 68 пункты А и В.
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ksmatva
Ответ:
а) 1,925 или 77/40
б) - 39/70
1 votes
Thanks 0
valeriatopalova0721
Спасибо, но если не сложно, можно с решениями, а не только ответы
ksmatva
скачай приложение Photomath
ksmatva
и сфоткай этот пример
iramazurk
(-3 5/8+7,6)-(10,8-8 3/4) =
1) -3 5/8 + 7,6 = -3 5/8 + 7 6/10 = -3 5/8 + 7 3/5 = -3 25/40 + 7 24/40= - 145/40 + 304/40 = 159/40= 3 39/40
2) 10,8 - 8 3/4 = 10 8/10 - 8 3/4 = 10 4/5 - 8 3/4 = 10 16/20 - 8 15/20 = 2 1/20
3) 3 39/40 - 2 1/20 = 3 39/40 - 2 2/40 = 1 37/40
(4,8 - 5 3/14)-(-4 3/35 + 4 8/35)=
1) 4,8 - 5 3/14 = 4 8/10 - 5 3/14 = 4 4/5 - 5 3/14 = 4 56/70 - 5 15/70 = 336/70 - 365/70 = - 29/70
2) -4 3/35 + 4 8/35 = 5/35 = 1/7
3) -29/70 - 1/7 = -29/70 - 10/70 = -39/70
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Answers & Comments
Ответ:
а) 1,925 или 77/40
б) - 39/70
1) -3 5/8 + 7,6 = -3 5/8 + 7 6/10 = -3 5/8 + 7 3/5 = -3 25/40 + 7 24/40= - 145/40 + 304/40 = 159/40= 3 39/40
2) 10,8 - 8 3/4 = 10 8/10 - 8 3/4 = 10 4/5 - 8 3/4 = 10 16/20 - 8 15/20 = 2 1/20
3) 3 39/40 - 2 1/20 = 3 39/40 - 2 2/40 = 1 37/40
(4,8 - 5 3/14)-(-4 3/35 + 4 8/35)=
1) 4,8 - 5 3/14 = 4 8/10 - 5 3/14 = 4 4/5 - 5 3/14 = 4 56/70 - 5 15/70 = 336/70 - 365/70 = - 29/70
2) -4 3/35 + 4 8/35 = 5/35 = 1/7
3) -29/70 - 1/7 = -29/70 - 10/70 = -39/70