а)37/48 :5 2/7-19/42*7 /8 +4 1/5
б)(3*2/9 -4 *1/12):(10/3-3)
в)6 2/5 :8/125 -11 1/9 :1 1/9+3 1/7
 г )(3/5 *1 7/11) - 1 7 /11 : 10
РАСПИСАТЬ СРОЧНО !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!