tolong di jawab y dwengan caranya

3.
Timggi pohon = 10,4 m = 104/10 m
Dipangkas 3 4/5 m = (3x5+4)/5 = 19/5 m
Tumbuh lagi ⅜ m

Tinggi pohon sekarang
= (104/10 - 19/5) + 3/8
= (104/10 - 38/10) + 3/8
= (66/10) + 3/8
= (66x8)/(10x8) + (3x10)/(8x10)
= 528/80 + 30/80
= 558/80
= 6 78/80
= 6 39/40 m

4.
Bahan
= 4¼ + ½
= 17/4 + 2/4
= 19/4 m

Membuat baju 3,5 m = 3½ m = 7/2 m

Sisa bahan
= 19/4 - 7/2
= 19/4 - 14/4
= 5/4
= 1 ¼ m