(13,75+9целое 1/6)*1,2 сколько

Question

(13,75+9целое 1/6)*1,2 сколько

Comments

(13.75 + 9 1/6) * 1.2 = (275/12) * 1.2 = 55/2 == 27 1/2 = 27.5

Answer 1

(13.75 + 9 1/6) * 1.2 =27 1/2 = 27,5
1)13,75+9 1/6= 13 75/100 +9 1/6 = 1375/100 +55/6= 55/4  +  55/6 =  
(55 × 3  +  55 × 2)/12 = 165/12  +  110/12 =  275/12 = 22 11/12
2)22 11/12 * 1,2 = 22 11/12 * 1 2/10= 275/12  ×  6/5 =  55/2 = 27 1/2 = 27,5

Answer 2

(13 3/4+9 1/6)*1 1/5=22 11/12*1 1/5=275/12*6/5=55/2=27,5

Comments

13 3/4

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133/4 это и есть 13,75 ,т.к 13,75=13 75/100=13 3/4