tolong bantu no 1,2,3 dong kak. berserta langkah2nya ya

1. 7/60÷8/15=7/60×15/8
=105/480 =7/32
2. 20/27÷5/9=20/27×9/5
=180/135 =4/3= 1 4/3
3. 21/23÷15/16=21/23×16/15
=336/345=112/115
Hitung lagi yq pke kalkulator, maaf klo salah...