Question

(4 5/12 - 3 7/18):9,25+5/6

Answer 1

4 5/12-3 7/18=4 15/36-3 14/36=1 1/36
1 1/36:9,25=37/36:9 25/100=37/36:9 1/4=37/36:37/4=37/36*4/37=1/9
1/9+5/6=2/18+15/18=17/18

Answer 2

1. 4⁵/₁₂-3⁷/₁₈=⁵³/₁₂-⁶¹/₁₈=(53*3-61*2)/36=(159-122)/36=37/36.
2. (37/36):9,25=(37/36):9¹/₄=(37/36):(37/4)=37*4/(36*37)=1/9.
3. ¹/₉+⁵/₆=(4*1+5*6)/36=(4+30)/36=34/36=17/18.