1,6÷ 3/8 – 3/8 ÷6
=1/6x(3/8-3/8)
=1/6x0
=0
2,4/7 × 5/9 + 3/7 × 5/9
=(4/7+3/7)x5/9
=1x5/9
=5/9
3,5/2 -( 3/2 + 4/5 )
=5/2-3/2-4/5
=1-4/5
=1/5
4,6 ×( 1/2 + 2/3 )
=6x1/2+6x2/3
=3+4
=7
5,8 × 4/5 + 8 × 11/5
=8x(4/5+11/5)
=8x3
=24
1,6÷ 3/8 – 3/8 ÷6
=1/6x(3/8-3/8)
=1/6x0
=0
2,4/7 × 5/9 + 3/7 × 5/9
=(4/7+3/7)x5/9
=1x5/9
=5/9
3,5/2 -( 3/2 + 4/5 )
=5/2-3/2-4/5
=1-4/5
=1/5
4,6 ×( 1/2 + 2/3 )
=6x1/2+6x2/3
=3+4
=7
5,8 × 4/5 + 8 × 11/5
=8x(4/5+11/5)
=8x3
=24
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