(7/8 - 17/12) : 5/12 помогите
1)7/8-17/12=21/24-34/24=-13/24; 2)-13/24:5/12=-13/24*12/5=-13/10=-1,3.
1) 7/8 - 17/12 = 21/24 - 34/24 = - 13/24 2) - 13/24 * 12/5 = 13/10 = 1,3