tolong kak.. pke crnya

3/4 halaman = 15 menit (dibagi 3)
1/4 halaman = 5 menit
maka 10 menit =?
2x5 menit = 2x1/4 = 2/4 = 1/2 halaman

no 6. 10/15 × 3/4 = 5/5 × 1/2 = 5/10 = 1/2
no 7. 1/4 × 3 1/2 = 1/4 × 7/2 = 7/8 kg

semoga membantu