Question

Выполните сложение:
а) 4 5/17+8/17; б) 3 5/21+4 8/21; в) 13+12 11/12; г) 9 5/6+7; д) 3 12/23+4 11/23; е) 7 15/19+4 14/19
ПОМОГИТЕ ПОЖАЛУЙСТА ​

Answer 1

Ответ:

а)

$4 \frac{5}{17} + \frac{8}{17} = \frac{73}{17} + \frac{8}{17} = \frac{81}{17} = 4 \frac{13}{17}$

б)

$3 \frac{5}{21} + 4 \frac{8}{21} = \frac{68}{21} + \frac{92}{21} = \frac{160}{21} = 7 \frac{13}{21}$

в)

$13 + 12 \frac{11}{12} = \frac{156}{12} + \frac{155}{12} = \frac{311}{12} = 25 \frac{11}{12}$

г)

$9 \frac{5}{6} + 7 = \frac{59}{6} + \frac{42}{6} = \frac{101}{6} = 16 \frac{5}{6}$

д)

$3 \frac{12}{23} + 4 \frac{11}{23} = \frac{81}{23} + \frac{103}{23} = \frac{184}{23} = 8$

е)

$7\frac{15}{19} + 4 \frac{14}{19} = \frac{148}{19} + \frac{90}{19} = \frac{238}{19} = 12 \frac{10}{19}$