A) 2/3 +7/9 - 5/6 = 12/18 + 14/18 - 15/18 = 1/18 B) 3/4 * 5/6 : 1/2 = 5/6 * 2 = 5/3 C) 10 - 1 5/6 * 4 1/2 = 10 - 8 1/4 = 1 3/4 D) 1 1/2 - 3/4 + 5/8 = 3/4 + 5/8 = 1 3/8 E) 7/9 : 2/3 * 6/7 = 7/9 * 3/2 * 6/7 = 1 F) 5/7 * 4 2/3 + 5/6 : 1 1/9 = 10/3 + 3/4 = 4 1/12 G) (1 1/5 - 1/2) + (3/4 + 3/10) = 7/10 + 1 1/20 = 1 3/4 H) 3 3/4 * 2 2/5 - 4 3/8 = 9 - 4 3/8 = 4 5/8 I) (2 1/4 - 1 2/3) : (1/6 + 2/9) = 7/12 : 7/18 = 1 1/2 A) 3/9 + 1 1/9 + 6 7/9 = 8 2/9 B) 1 1/2 + 3 5/7 = 5 3/14 C) 4 4/5 - 1 1/4 = 3 11/20 D) 3/4 * 8/12 * 1/3 = 1/6 E) 1 5/7 * 2 3/4 = 33/7 = 4 5/7 F) 1 7/8 * 3 3/5 * 1/7 = 27/28 G) 1 8/12 * 3/5 * 4/9 = 4/9 H) 12/20 : 1/8 = 4 4/5 I) 1 5/5 : 2 3/4 = 8/11 J) 1 5/10 : 2 1/3 * 2/4 = 9/28 K) 7/10 : 12/15 * 3/5 = 42/125
Zrobiłam tylko 1 ale dobre i to.masz od góry 2/3+7/9=6/9+7/9=13/9-5/6=26/18-15/18=11/18