Ответ:
[tex]1. -\frac{7}{9} +\frac{1}{6}=-\frac{14}{18} +\frac{3}{18} =-\frac{11}{18}[/tex]
Ответ под цифрой 4.
2.[tex]-2\frac{3}{8} -(-1\frac{5}{16} )=-2\frac{3}{8} +1\frac{5}{16} =-2\frac{6}{16} +1\frac{5}{16}=-1\frac{1}{16}[/tex]
Ответ под цифрой 2.
1. 4) [tex]-\frac{11}{18};[/tex]
2. 2) [tex]-1\frac{1}{16};[/tex]
Обьяснение:
1.[tex]-\frac{7}{9} +\frac{1}{6} =\frac{1}{6}-\frac{7}{9}=\frac{1*3}{6*3} -\frac{7*2}{9*2} =\frac{3}{18} -\frac{14}{18} =\frac{3-14}{18} =-\frac{11}{18};[/tex]
2.[tex]-2\frac{3}{8} -(-1\frac{5}{16} )=-2\frac{3}{8} +1\frac{5}{16}=1\frac{5}{16}-2\frac{3}{8} =\frac{5+1*16}{16} -\frac{3+2*8}{8} =\frac{21}{16} -\frac{19}{8} =\frac{21*1}{16*1} -\frac{19*2}{8*2} =\frac{21}{16} -\frac{38}{16} =\frac{21-38}{16} =-\frac{17}{16} =\frac{1*16+1}{16} =-1\frac{1}{16};[/tex]
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Verified answer
Ответ:
[tex]1. -\frac{7}{9} +\frac{1}{6}=-\frac{14}{18} +\frac{3}{18} =-\frac{11}{18}[/tex]
Ответ под цифрой 4.
2.[tex]-2\frac{3}{8} -(-1\frac{5}{16} )=-2\frac{3}{8} +1\frac{5}{16} =-2\frac{6}{16} +1\frac{5}{16}=-1\frac{1}{16}[/tex]
Ответ под цифрой 2.
Ответ:
1. 4) [tex]-\frac{11}{18};[/tex]
2. 2) [tex]-1\frac{1}{16};[/tex]
Обьяснение:
1.[tex]-\frac{7}{9} +\frac{1}{6} =\frac{1}{6}-\frac{7}{9}=\frac{1*3}{6*3} -\frac{7*2}{9*2} =\frac{3}{18} -\frac{14}{18} =\frac{3-14}{18} =-\frac{11}{18};[/tex]
2.[tex]-2\frac{3}{8} -(-1\frac{5}{16} )=-2\frac{3}{8} +1\frac{5}{16}=1\frac{5}{16}-2\frac{3}{8} =\frac{5+1*16}{16} -\frac{3+2*8}{8} =\frac{21}{16} -\frac{19}{8} =\frac{21*1}{16*1} -\frac{19*2}{8*2} =\frac{21}{16} -\frac{38}{16} =\frac{21-38}{16} =-\frac{17}{16} =\frac{1*16+1}{16} =-1\frac{1}{16};[/tex]