10/12除以2又19/22-1又2/5*11/13除以7+1/5*22/63

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/18 05:03:17
10/12除以2又19/22-1又2/5*11/13除以7+1/5*22/63
xM 0LLb!.z)z kԅ^IS+q}o |o-O `V$/Ɉ@:.'Y0j'urYV9 ]#Ž ̉%B95^.b tY IB8a2EKV,ʅm

10/12除以2又19/22-1又2/5*11/13除以7+1/5*22/63
10/12除以2又19/22-1又2/5*11/13除以7+1/5*22/63

10/12除以2又19/22-1又2/5*11/13除以7+1/5*22/63
10/12除以二又19/22-1又2/5*11/13+7+1/5*22/63
=10/12除以63/22-77/(5*13)+7+22/(5*63)
=10/12*22/63+1/5*22/630-7/5-11/13*1/7
=(22/63)(5/6+1/5)-11/63)
=(22/63)(5/6*+1/5-1/2)
=(22/63)(8/15)
=176/945