1) -8,5 + ( -0,3 + 4/5= -8,5 + (-0,3) + 4/= -8,5 - 0,3 + 4/= -8,8 + 4/= -8,8 + 0,= -8
2) -9 3/7 - (-6 + 4/7= -9 3/7 + ( -6 + 4/7= -9 3/7 - 6 + 4/= -9 3/7 - 6 + 4/= -9 - 6 + 3/7 + 4/= -15 + 7/= -15 + = -14
1) -8,5 + ( -0,3 + 4/5
= -8,5 + (-0,3) + 4/
= -8,5 - 0,3 + 4/
= -8,8 + 4/
= -8,8 + 0,
= -8
2) -9 3/7 - (-6 + 4/7
= -9 3/7 + ( -6 + 4/7
= -9 3/7 - 6 + 4/
= -9 3/7 - 6 + 4/
= -9 - 6 + 3/7 + 4/
= -15 + 7/
= -15 +
= -14