Question

五年级找规律填数5/6-7/12=(1/2+1/3)-(1/4+1/3)=1/2+1/3-1/4-1/3=1/2-1/4

Answer 1

5/6-7/12=(1/2+1/3)-(1/4+1/3)=1/2+1/3-1/4-1/3=1/2-1/4=

=(18+1/9)+(- 1/36+(-1/9))-(1/22-(-1/12))+(1/11+1/12)

=1/4