Предмет: Математика
Автор: diana2004
Вопрос задан 10 лет назад

1) 6,3+19цел 1/2+3цел 2/3, 2) 2,64+5цел 2/3+2/15, 3)9, 25+3цел 5/6+ 1цел 2/3, 4) 2 цел 1/4+ 3,6+1/6, 5)0,05+10цел 7/12+1/5, 6)4цел 3/8+2,25+14цел 7/10, 7) 9,5+ 5 цел 9/10+ 6цел 1/3, 8)19,6+ 1/6+3 цел 2/15. прошууу решите прав!

Ответы

Ответ дал: Salvadorr

1)6,3+19,5+3 2/3=189/30+585/30+110/30=884/30=29 7/15
2)2,64+5 2/3+2/15=66/25+17/3+2/15=198/75+425/75+10/75=8 11/25
3)9,25+3 5/6+1 2/3=37/4+23/6+5/3=111/12+46/12+20/12=14,75
4)2 1/4+3,6+1/6=9/4+18/5+1/6=135/60+216/60+10/60=6 1/60
5)0,05+10 7/12+1/5=1/20+127/12+1/5=3/60+635/60+12/60=10 5/6
6)4 3/8+2,25+14 7/10=35/8+9/4+147/10=175/40+90/40+588/40=21 13/40
7)9,5+ 5 9/10+ 6 1/3=19/2+59/10+19/3=285/30+177/30+190/30=21 11/15
8)19,6+ 1/6+3 2/15=98/5+1/6+47/15=588/30+5/30+94/30=22,9

Ответ дал: Svet1ana

1) $6,3+19frac{1}{2}+3frac{2}{3}=6frac{3}{10}+19frac{1}{2}+3frac{2}{3}=frac{63}{10}+frac{39}{2}+frac{11}{3}=frac{189+585+110}{30}=frac{884}{30}=frac{442}{15}=29frac{7}{15}$

2) $2,64+5frac{2}{3}+frac{2}{15}=2frac{64}{100}+5frac{2}{3}+frac{2}{15}=2frac{16}{25}+5frac{2}{3}+frac{2}{15}=frac{66}{25}+frac{17}{3}+frac{2}{15}=frac{198+425+10}{75} =frac{633}{75}=frac{211}{25}=8frac{11}{25}$

3) $9,25+3frac{5}{6}+1frac{2}{3}=9frac{25}{100}+3frac{5}{6}+1frac{2}{3}=9frac{1}{4}+3frac{5}{6}+1frac{2}{3}=frac{37}{4}+frac{23}{6}+frac{5}{3}=frac{111+46+20}{12}=frac{177}{12}=frac{59}{4}=14frac{3}{4}$

4) $2frac{1}{4}+3,6+frac{1}{6}=2frac{1}{4}+3frac{6}{10}+frac{1}{6}=2frac{1}{4}+3frac{3}{5}+frac{1}{6}=frac{9}{4}+frac{18}{5}+frac{1}{6}=frac{135+216+10}{60}=frac{361}{60}=6frac{1}{60}$

5) $0,05+10frac{7}{12}+frac{1}{5}=frac{5}{100}+10frac{7}{12}+frac{1}{5}=frac{1}{20}+10frac{7}{12}+frac{1}{5}=frac{1}{20}+frac{127}{12}+frac{1}{5}=frac{3+635+12}{60} =frac{650}{60}=frac{65}{6}=10frac{5}{6}$

6) $4frac{3}{8}+2,25+14frac{7}{10}=4frac{3}{8}+2frac{25}{100}+14frac{7}{10}=4frac{3}{8}+2frac{1}{4}+14frac{7}{10}=frac{35}{8}+frac{9}{4}+frac{147}{10}=frac{175+90+588}{40}=frac{853}{40}=21frac{13}{40}$

7) $9,5+5frac{9}{10}+6frac{1}{3}=9frac{5}{10}+5frac{9}{10}+6frac{1}{3}=9frac{1}{2}+5frac{9}{10}+6frac{1}{3}=frac{19}{2}+frac{59}{10}+frac{19}{3}=frac{285+177+190}{30}=frac{652}{30}=frac{326}{15}=21frac{11}{15}$

8) $19,6+frac{1}{6}+3frac{2}{15}=19frac{6}{10}+frac{1}{6}+3frac{2}{15}=19frac{3}{5}+frac{1}{6}+3frac{2}{15}=frac{98}{5}+frac{1}{6}+frac{47}{15}=frac{588+5+94}{30}=frac{687}{30}=frac{229}{10}=22frac{9}{10}$