1)(1/3*5/7-10/9)*3/8=(5/21-10/9)*3/8=(-55/63)*3/8=-55/21*1/8=-55/168
2)(3/8+1/7*11/10)*11/3=(3/8+11/70)*11/3=149/280*11/3=1639/840
1)(1/3*5/7-10/9)*3/8=(5/21-10/9)*3/8=(-55/63)*3/8=-55/21*1/8=-55/168
2)(3/8+1/7*11/10)*11/3=(3/8+11/70)*11/3=149/280*11/3=1639/840