1 2/3÷2 1/2-3/5×1 2/7

1 2/3:2 1/2-3/5×1 2/7
5/2:5/2-3/5×9/7
1-27/35
35-27/35
8/35

Jawaban :
( 1 2/3 ÷ 2 1/2 ) - (3/5 × 1 2/7)
=( 5 / 3 × 2/5 ) - ( 3/5 × 9/2)
= 2/3 - 27/10
= 0,6 - 2,7
= - 2,1

Semoga bermanfaat