Помогите а) 7/12+1/60 б) 19/65+14/13 в) 3/10+77/1000 г) 2/7+4/35 д) 21/32+1/8 е)...

А) $\frac{7}{12}+ \frac{1}{60}= \frac{7*5+1}{60}= \frac{36}{60}= \frac{6}{10}$
б) $\frac{19}{65}+ \frac{14}{13}= \frac{19+14*5}{65 }= \frac{89}{65}$
в) $\frac{3}{10} + \frac{77}{1000}= \frac{3*100+77}{1000}= \frac{377}{1000}$
г) $\frac{2}{7}+ \frac{4}{35}= \frac{2*5+4}{35}= \frac{14}{35}= \frac{2}{5}$
д) $\frac{21}{32}+ \frac{1}{8}= \frac{21+4}{32}= \frac{25}{32}$
е) $\frac{11}{27}+ \frac{4}{9}= \frac{11+4*3}{27}= \frac{23}{27}$