Matematyka
kryśka
2017-06-26 11:29:44
MATEMATYKA !!! Dodawanie i odejmowanie ułamków zwykłych o różnych mianownikach. 9 7/8 plus 3/5 = 9 59/40 plus 10 19/40 = 3 1/4 plus 8/9 plus 4 1/6 = 12 5/6 plus 9 4/9 = 6 6/7 plus 4/5 = 25 7/8 plus 17 5/7 MATEMATYKA !!! Daje naj i 12 pkt
Odpowiedź
karax012
2017-06-26 12:10:18

Witaj :) [1] [latex]9 frac{7}{8} + frac{3}{5} = frac{79}{8} + frac{3}{5} = frac{395}{40} + frac{24}{40} = frac{419}{40} = 10 frac{19}{40} [/latex] [2] [latex]9 frac{59}{40} +10 frac{19}{40} = frac{419}{40} + frac{419}{40} = frac{838}{40} =[/latex]  [latex] 20 frac{38}{40} = 20 frac{19}{20} [/latex] [3] [latex]3 frac{1}{4} + frac{8}{9} + 4 frac{1}{6} = frac{13}{4} + frac{8}{9} + frac{25}{6} = frac{117}{36} + frac{32}{36} + frac{150}{36} = frac{299}{36} = 8 frac{11}{36} [/latex] [4] [latex]12 frac{5}{6} + 9 frac{4}{9} = frac{77}{6} + frac{85}{9} = frac{693}{54} + frac{510}{54} = frac{1203}{54} =22 frac{15}{54} =22 frac{5}{18} [/latex] [5] [latex] 6frac{6}{7} + frac{4}{5} = frac{48}{7} + frac{4}{5} = frac{240}{35} + frac{28}{35} = frac{268}{35} =7 frac{23}{35} [/latex] [6] [latex]25 frac{7}{8} + 17 frac{5}{7} = frac{207}{8} + frac{124}{7} = frac{1449}{56} + frac{992}{56} = frac{2441}{56} = [/latex] [latex]43 frac{33}{56} [/latex] Mam nadzieję, że pomogłam.

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