решить пример
- 3/4 *12/7-(-1/2)2
- 1/3 * 6/5 - 5/6 * 3/25
3/10 * (-5/60) + 2/3 * (-3/8)

-3/4*12/7-(-1/2)^2=-9/7-1/4=-43/28-1/3*6/5-5/6*3/25=-2/5-1/10=-5/10=-0.53/10*(-5/60)+2/3*(-3/8)=-1/40-1/4=-11/40=-0.275