【-5又3分之1】-(-3)+【+3分之13】+(-3)
= -16/3 + 3 + 13/3 - 3 =-1
| -1.2+2又5分之1| -5又3分之1-|3.4-(-1.2)|
=|-6/5 + 11/5| - 16/3 - |17/5 + 6/5| = 1 - 16/3 - 23/5 = (15-80-46)/15 = -8又14/15
你好:
【-5又3分之1】-(-3)+【+3分之13】+(-3)
= - 16/3 + 3 + 13/3 -3
= ( - 16/3 + 13/3)+(3 - 3)
= - 1 + 0
= -1
| -1.2+2又5分之1| -5又3分之1-|3.4-(-1.2)|
=| - 1.2 +2.2 | - 16/3 - | 3.4 + 1.2 |
= 1 - 16/3 - 4.6
=- 13/3 -23/5
=- 65/15 - 69/15
=- 134/15
=(-5又3分之1)+(3分之13)=-1
==1-5又3分之1-4.6
=-3.6-5又3分之1
=-8又十五分之十四