1 3/5 ÷ 10/15 × 21/28 jawab y please

13/5 ÷ 10/15 × 21/28=
= 13/5 ÷ 10/15 × 21/28
= 13/5 × 15/10 × 21/28
= 195/50 × 21/28
= 4.095/1.400
=bila disederhanakan menjadi
= 4.095/1.400 ÷ 5
=819/280
= dan seterusnya

smoga membantu...
thanks for you..
slamat blajar..
ikuti saya ya...