5又4分之3+7又5分之3+1.25-5.6=5又2分之1除以2.2*1又7分之3=

问题描述:

5又4分之3+7又5分之3+1.25-5.6=
5又2分之1除以2.2*1又7分之3=


5又4分之3+7又5分之3+1.25-5.6
=(5+7+1-5)+(3/4+3/5+1/4-3/5)
=8+1
=9
5又2分之1除以2.2*1又7分之3
=11/2÷11/5×10/7
=11/2×5/11×10/7
=25/7
=3又7分之4

5又4分之3+7又5分之3+1.25-5.6

=5+3/4 +7+3/5 + 5/4 - 5 - 3/5
=5+3/4 + 5/4 +7+3/5 - 3/5- 5
= 5 + 2 + 7 -5
= 9
5又2分之1除以2.2*1又7分之3
= 11/2 ÷ 2.2x 10/7
= 11/2 x2.2 x 10/7
= 110 / 14x2.2
= 10 / 14 x 0.2
= 100 / 28
= 25 / 7

5又4分之3+7又5分之3+1.25-5.6
=5.75+7.6+1.25-5.6
=(5.75+1.25)+(7.6-5.6)
=7+2
=9
5又2分之1除以2.2*1又7分之3
=11/2÷11/5x10/7
=5/2x10/7
=25/7

5又4分之3+7又5分之3+1.25-5.6
=5.75+1.25+7.6-5.6
=7+2
=9

5又2分之1除以2.2*1又7分之3
=5.5÷2.2×1又3/7
=2.5×10/7
=25/7

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