1. 3 4/5 + 7/5 =

By Admin ReiPosted on December 9, 2022

2 5 7/9 + 5/9=
3 4 5/7 + 3/8=
5 7 4/6 + 3 5/7 =
Tolong jawab ya kak

1. 3 4/5 + 7/5 =

NOMOR 1.

$3 frac{4}{5} + frac{7}{5} = frac{19}{5} + frac{7}{5} = frac{26}{5} = 5 frac{1}{5}$

NOMOR 2.

$5 frac{7}{9} + frac{5}{9} = frac{52}{9} + frac{5}{9} = frac{57}{9} = 6 frac{3}{9} = 6 frac{1}{3}$

NOMOR 3.

$4 frac{5}{7} + frac{3}{8}$

$= frac{33}{7} + frac{3}{8}$

$= frac{(33 times 8) + (3 times 7)}{56}$

$= frac{264 + 24}{56} = frac{288}{56} = 5 frac{8}{56} = 5 frac{1}{7}$

NOMOR 5.

$7 frac{4}{6} + 3 frac{5}{7}$

$= frac{46}{6} + frac{26}{7}$

$= frac{(46 times 7) + (26 times 6)}{42}$

$= frac{322 + 156}{42} = frac{478}{42} = 11 frac{16}{42} = 11 frac{8}{21}$

Penjelasan dengan langkah-langkah:

Nomor 1

$= 3 frac{4}{5} + frac{7}{5}$

$= 3 + ( frac{4}{5} + frac{7}{5} )$

$= 3 + frac{11}{5}$

$= 3 + 2 + frac{1}{5}$

$= 5 + frac{1}{5}$

$= 5 frac{1}{5}$

$:$

Nomor 2

$= 5 frac{7}{9} + frac{5}{9}$

$= 5 + ( frac{7}{9} + frac{5}{9} )$

$= 5 + frac{12}{9}$

$= 5 + 1 + frac{3}{9}$

$= 6 + frac{1}{3}$

$= 6 frac{1}{3}$

$:$

Nomor 3

$= 4 frac{5}{7} + frac{3}{8}$

$= 4 + ( frac{5}{7} + frac{3}{8} )$

$= 4 + ( frac{ 5times 8 + 3 times 7}{56} )$

$= 4 + ( frac{40 + 21}{56} )$

$= 4 + frac{61}{56}$

$= 4 + 1 + frac{5}{56}$

$= 5 + frac{5}{56}$

$= 5 frac{5}{56}$

$:$

Nomor 4

$= 7 frac{4}{6} + 3 frac{5}{7}$

$= (7 + 3 ) + ( frac{4}{6} + frac{5}{7} )$

$= 10 + ( frac{2}{3} + frac{5}{7} )$

$= 10 + ( frac{2 times 7 + 5 times 3}{21} )$

$= 10 + ( frac{14 + 15}{21} )$

$= 10 + frac{29}{21}$

$= 10+ 1 + frac{8}{21}$

$= 11 + frac{8}{21}$

$=11 frac{8}{21}$