2 5 7/9 + 5/9=
3 4 5/7 + 3/8=
5 7 4/6 + 3 5/7 =
Tolong jawab ya kak
NOMOR 1.
[tex]3 \frac{4}{5} + \frac{7}{5} = \frac{19}{5} + \frac{7}{5} = \frac{26}{5} = 5 \frac{1}{5} [/tex]
NOMOR 2.
[tex]5 \frac{7}{9} + \frac{5}{9} = \frac{52}{9} + \frac{5}{9} = \frac{57}{9} = 6 \frac{3}{9} = 6 \frac{1}{3} [/tex]
NOMOR 3.
[tex]4 \frac{5}{7} + \frac{3}{8}[/tex]
[tex]= \frac{33}{7} + \frac{3}{8}[/tex]
[tex]= \frac{(33 \times 8) + (3 \times 7)}{56}[/tex]
[tex] = \frac{264 + 24}{56} = \frac{288}{56} = 5 \frac{8}{56} = 5 \frac{1}{7} [/tex]
NOMOR 5.
[tex]7 \frac{4}{6} + 3 \frac{5}{7} [/tex]
[tex] = \frac{46}{6} + \frac{26}{7} [/tex]
[tex] = \frac{(46 \times 7) + (26 \times 6)}{42} [/tex]
[tex] = \frac{322 + 156}{42} = \frac{478}{42} = 11 \frac{16}{42} = 11 \frac{8}{21} [/tex]
Penjelasan dengan langkah-langkah:
Nomor 1
[tex] = 3 \frac{4}{5} + \frac{7}{5} [/tex]
[tex] = 3 + ( \frac{4}{5} + \frac{7}{5} )[/tex]
[tex] = 3 + \frac{11}{5} [/tex]
[tex] = 3 + 2 + \frac{1}{5} [/tex]
[tex] = 5 + \frac{1}{5} [/tex]
[tex] = 5 \frac{1}{5} [/tex]
[tex] \: [/tex]
Nomor 2
[tex] = 5 \frac{7}{9} + \frac{5}{9} [/tex]
[tex] = 5 + ( \frac{7}{9} + \frac{5}{9} )[/tex]
[tex] = 5 + \frac{12}{9} [/tex]
[tex] = 5 + 1 + \frac{3}{9} [/tex]
[tex] = 6 + \frac{1}{3} [/tex]
[tex] = 6 \frac{1}{3} [/tex]
[tex] \: [/tex]
Nomor 3
[tex] = 4 \frac{5}{7} + \frac{3}{8} [/tex]
[tex] = 4 + ( \frac{5}{7} + \frac{3}{8} )[/tex]
[tex] = 4 + ( \frac{ 5\times 8 + 3 \times 7}{56} )[/tex]
[tex] = 4 + ( \frac{40 + 21}{56} )[/tex]
[tex] = 4 + \frac{61}{56} [/tex]
[tex] = 4 + 1 + \frac{5}{56} [/tex]
[tex] = 5 + \frac{5}{56} [/tex]
[tex] = 5 \frac{5}{56} [/tex]
[tex] \: [/tex]
Nomor 4
[tex] = 7 \frac{4}{6} + 3 \frac{5}{7} [/tex]
[tex] = (7 + 3 ) + ( \frac{4}{6} + \frac{5}{7} )[/tex]
[tex] = 10 + ( \frac{2}{3} + \frac{5}{7} )[/tex]
[tex] = 10 + ( \frac{2 \times 7 + 5 \times 3}{21} )[/tex]
[tex] = 10 + ( \frac{14 + 15}{21} )[/tex]
[tex] = 10 + \frac{29}{21} [/tex]
[tex] = 10+ 1 + \frac{8}{21} [/tex]
[tex] = 11 + \frac{8}{21} [/tex]
[tex] =11 \frac{8}{21} [/tex]
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