6. Найдите значение выражения: 6.1) 1/2 − 9/10; 6.2) 1/2 − 49/20; 6.3) 1/2 − 13/50; 6.4) 1/4 − 51/20; 6.5) 1/5 − 47/10; 6.6) 1/5 − 41/50; 6.7) 1/5 − 27/20; 6.8) 1/10 − 29/50; 6.9) 1/10 − 23/20; 6.10) 1/25 − 7/50; 6.11) 91/60 − 4/15; 6.12) 23/34 − 3/17; 6.13) 52/65 − 4/13; 6.14) 127/300 − 1/3; 6.15) 143/85 − 15/17.

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Accepted Answer

\(\frac12-\frac9{10}=\frac5{10}-\frac9{10}=-\frac25\).
\(\frac12-\frac{49}{20}=\frac{10}{20}-\frac{49}{20}=-\frac{39}{20}=-1\frac{19}{20}\).
\(\frac12-\frac{13}{50}=\frac{25}{50}-\frac{13}{50}=\frac6{25}\).
\(\frac14-\frac{51}{20}=\frac5{20}-\frac{51}{20}=-\frac{46}{20}=-\frac{23}{10}\).
\(\frac15-\frac{47}{10}=\frac2{10}-\frac{47}{10}=-\frac{45}{10}=-\frac92\).
\(\frac15-\frac{41}{50}=\frac{10}{50}-\frac{41}{50}=-\frac{31}{50}\).
\(\frac15-\frac{27}{20}=\frac4{20}-\frac{27}{20}=-\frac{23}{20}\).
\(\frac1{10}-\frac{29}{50}=\frac5{50}-\frac{29}{50}=-\frac{12}{25}\).
\(\frac1{10}-\frac{23}{20}=\frac2{20}-\frac{23}{20}=-\frac{21}{20}\).
\(\frac1{25}-\frac7{50}=\frac2{50}-\frac7{50}=-\frac1{10}\).
\(\frac{91}{60}-\frac4{15}=\frac{91}{60}-\frac{16}{60}=\frac54\).
\(\frac{23}{34}-\frac3{17}=\frac{23}{34}-\frac6{34}=\frac12\).
\(\frac{52}{65}-\frac4{13}=\frac{52}{65}-\frac{20}{65}=\frac{32}{65}\).
\(\frac{127}{300}-\frac13=\frac{127}{300}-\frac{100}{300}=\frac9{100}\).
\(\frac{143}{85}-\frac{15}{17}=\frac{143}{85}-\frac{75}{85}=\frac{68}{85}=\frac45\).

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