Question

решите: (7 9/8-9 1/4)-(0,035-0,04)=

Answer 1

 (7 9/8-9 1/4)-(0,035-0,04)= (8 1/8 - 9 1/4) - (-0,005) = (8 1/8 - 9 2/8) + 0,005 = -1 1/8 + 0,005 = 
1 вариант: = -1 1/8 + 5/1000 = - 1 125/1000 + 5/1000 = - 1 120/1000 = - 1 3/25
2 вариант: = -1,125 + 0,005 = - 1,12