1)(-3/7*1/4)*(-4)=-3/28*(-4)=3/7
2)(-4 1/5*1,3)*10/13=-273/50*10/13=-21/5=-4 1/5
3)(-5 6/7*3/13)*(-4 1/3)=-123/91*(-4 1/3)=41/7=5 6/7
4)-(7 5/12+7/36)*5 1/7=-137/18*5 1/7=-274/7=-39 1/7
1)(-3/7*1/4)*(-4)=-3/28*(-4)=3/7
2)(-4 1/5*1,3)*10/13=-273/50*10/13=-21/5=-4 1/5
3)(-5 6/7*3/13)*(-4 1/3)=-123/91*(-4 1/3)=41/7=5 6/7
4)-(7 5/12+7/36)*5 1/7=-137/18*5 1/7=-274/7=-39 1/7