31又1/2÷3/2+41又1/3÷4/3+51又1/4÷5/4
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/14 02:34:38
![31又1/2÷3/2+41又1/3÷4/3+51又1/4÷5/4](/uploads/image/z/643834-10-4.jpg?t=31%E5%8F%881%2F2%C3%B73%2F2%2B41%E5%8F%881%2F3%C3%B74%2F3%2B51%E5%8F%881%2F4%C3%B75%2F4)
x
0QM*% %ܹ(@xP`\L`EVFMI]Io
J{K|z27q{4(9NGQ$ƉlCb[ ljd,*Oi
31又1/2÷3/2+41又1/3÷4/3+51又1/4÷5/4
31又1/2÷3/2+41又1/3÷4/3+51又1/4÷5/4
31又1/2÷3/2+41又1/3÷4/3+51又1/4÷5/4
31又1/2÷3/2+41又1/3÷4/3+51又1/4÷5/4
=(30+1又1/2)×2/3+(40+1又1/3)×3/4+(50+1又1/4)×4/5
=20+3/2×2/3+30+4/3×3/4+40+5/4×4/5
=20+1+30+1+40+1=93