Tolong di jawab kakak plisssss pke cara ya​

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Tolong di jawab kakak plisssss pke cara ya​

Tolong di jawab kakak plisssss pke cara ya​

Jawaban:

1. : : frac{1}{2} + frac{2}{3} =

= frac{3}{6} + frac{4}{6}

= frac{7}{6}

= 1 frac{1}{6}

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2. : : frac{3}{4} - frac{3}{5} =

= frac{15}{20} - frac{12}{20}

= frac{3}{20}

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3. : : frac{5}{6} + frac{2}{5} =

= frac{25}{30} + frac{12}{30}

= frac{37}{25}

= 1 frac{12}{25}

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4. : : frac{6}{9} - frac{3}{7} =

= frac{42}{63} - frac{27}{63}

= frac{15}{63}

= frac{5}{21}

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5. : : frac{12}{15} + frac{9}{12} =

= frac{48}{60} + frac{45}{60}

= frac{93}{60}

= frac{31}{20}

= 1 frac{11}{20}

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6. : : frac{17}{20} - frac{19}{30} =

= frac{51}{60} - frac{38}{60}

= frac{13}{60}

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7. : : frac{5}{8} + frac{3}{4} + frac{4}{6} =

= frac{15}{24} + frac{18}{24} + frac{16}{24}

= frac{33}{24} + frac{16}{24}

= frac{49}{24}

= 2frac{1}{24}

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8. : : frac{8}{9} - frac{2}{6} - frac{10}{18} =

= frac{16}{18} - frac{6}{18} - frac{10}{18}

= frac{10}{18} - frac{10}{18}

= frac{0}{18}

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9. : : frac{5}{6} + frac{10}{12} - frac{14}{15} =

= frac{50}{60} + frac{50}{60} - frac{56}{60}

= frac{100}{60} - frac{56}{60}

= frac{44}{60}

= frac{22}{30}

= frac{11}{15}

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10. : : frac{17}{20} - frac{21}{30} + frac{23}{40} =

= frac{102}{120} - frac{84}{120} + frac{69}{120}

= frac{18}{120} + frac{69}{120}

= frac{87}{120}

= frac{29}{40}