Question

-61,3-(-7,7)+5,30 ; 5 5/9-(-10,7)-(-15 4/9) ;-8,6+(-4,9)-8,6-(-5,3) ;-4 11/12-(-3 11/45)-(-7 8/15)

Answer 1

1) 74,3
2) 2353/90
3) -77
4) 203/36