Question

oblicz: jeżeli będzie np. 2 2/5 to znaczy dwa i dwie piąte

2 1/3 * 1,2

2,4 : 1 5/7

1 1/7* 1 3/4

1 1/3 : 12

2 2/6 :3 2/5 * 1 1/5

Answer 1

2 1/3 * 1,2 = 7/3 * 12/10 = 7/3 * 6/5 = 42/15 = 2 12/15 = 2 4/5

2,4 : 1 5/7 = 24/10 : 12/7 = 24/10 * 7/12 = 14/10 = 1 4/10 = 1 2/5

1 1/7* 1 3/4 = 8/7 * 7/4 = 2

1 1/3 : 12 = 4/3 : 12 = 4/3 * 1/12 = 1/9

2 2/6 :3 2/5 * 1 1/5 = 14/6 : 15/5 * 6/5 = 14/6 * 5/15 * 6/5 = 14/15

Answer 2

a) 2 i ⅓ · 1,2 = ⁷/₃ · ¹²/₁₀ = ⁸⁴/₃₀ = 2 i ²⁴/₃₀ = 2 i ⅘ = 2,8

b) 2,4 ÷ 1 i ⁵/₇ = ²⁴/₁₀ ÷ ¹²/₇ = ²⁴/₁₀ · ⁷/₁₂ = ²/₁₀ · ⁷/₁ = ¹⁴/₁₀ = 1 i ⁴/₁₀ = 1 i ⅖ = 1,4

c) 1 i ¹/₇ · 1 i ¾ = ⁸/₇ · ⁷/₄ = ²/₁ · ¹/₁ = ²/₁ = 2

d) 1 i ⅓ ÷ 12 = ⁴/₃ ÷ 12 = ¹/₉ = 0,(1)

e) 2 i ²/₆ ÷ 3 i ⅖ · 1 ⅕ = ¹⁴/₆ ÷ ¹⁷/₅ · ⁶/₅ = ¹⁴/₆ · ⁵/₁₇ · ⁶/₅ = ⁷⁰/₁₀₈ · ⁶/₅ = ¹⁴/₁₇ =

= 0,823529412

Proszę ;**