vhetha
1a) 32 : 72 = 4 : 9 b) 1⅓ : 2¾ = 4/3 : 11/4 = 16 : 33 c) ½ jam : 20 mnt = 30 mnt : 20 mnt = 3 : 2 d) 170 cm : 3,4 hm = 170 cm : 34000 cm = 1 : 200 e) 12 m² : 40 cm² = 120.000 cm² : 40 cm² = 3.000 : 1 f) 5kg : 4ons = 50 ons : 4 ons = 25 : 2
2a) lbr sbnrny = 3 cm × 50 = 150 cm = 1,5 m pjg sbnrny = 4 cm × 50 = 200 cm = 2 m b) lbr peta = 4m = 400 cm : 50 = 8 cm pjg peta = 6 m = 600 cm : 50 = 12 cm
3a) 3 : ½ × 4.800 = 3 × 2 × 4.800 = 28.800 b) 4½ : ½ × 4.800 = 9/2 × 2 × 4.800 = 43.200 c) 6¾ ÷ ½ × 4.800 = 27/4 × 2 × 4.800 = 64.800 d) 8 : ½ × 4.800 = 8 × 2 × 4.800 = 76.800
b) 1⅓ : 2¾
= 4/3 : 11/4
= 16 : 33
c) ½ jam : 20 mnt
= 30 mnt : 20 mnt
= 3 : 2
d) 170 cm : 3,4 hm
= 170 cm : 34000 cm
= 1 : 200
e) 12 m² : 40 cm²
= 120.000 cm² : 40 cm²
= 3.000 : 1
f) 5kg : 4ons
= 50 ons : 4 ons
= 25 : 2
2a) lbr sbnrny = 3 cm × 50 = 150 cm = 1,5 m
pjg sbnrny = 4 cm × 50 = 200 cm = 2 m
b) lbr peta = 4m = 400 cm : 50 = 8 cm
pjg peta = 6 m = 600 cm : 50 = 12 cm
3a) 3 : ½ × 4.800
= 3 × 2 × 4.800 = 28.800
b) 4½ : ½ × 4.800
= 9/2 × 2 × 4.800 = 43.200
c) 6¾ ÷ ½ × 4.800
= 27/4 × 2 × 4.800
= 64.800
d) 8 : ½ × 4.800
= 8 × 2 × 4.800
= 76.800