3/11+9/19+7/11+10/19
=(3/11+7/11)+ ( 10/19+9/19 )
=10/11+19/19
=10/11+1
=1 10/11
48×(1/6-1/8)
=48×1/6-48× 1/8)
=8-6=2
1/3+2/3×3/8=1/3+1/4=7/12
1/4÷8×8/9÷8/9=1/4 ×1/8 ×8/9 ×9/8
=1/32
3/11+9/19+7/11+10/19
=(3/11+7/11)+(9/19+10/19)
=1又11分之10
48×(1/6-1/8)
=48×(1/6)-48×(1/8)
=8-6
=2
1/3+2/3×3/8
=1/3+1/4
=7/12
1/4÷8×8/9÷8/9
=(1/4)×(1/8)×(8/9)×(9/8)
=(1/4)×(1/8)
=1/32
3/11+9/19+7/11+10/19
=(3/11+7/11)+(9/19+10/19)
=10/11+1
=1又10/11
48×(1/6-1/8)
=48×1/6-48×1/8
=8-6
=2
1/3+2/3×3/8
=1/3+1/4
=7/12
1/4÷8×8/9÷8/9
=(1/4÷8)×(8/9÷8/9)
=1/32×1
=1/32