Ответы
Ответ:
Пошаговое объяснение:
1 1/12 + 1/4 = 13/12+1/4 = 13/12 + 3/12=16/12 = 4/3 = 1 1/3
11/40 + 2 1/5 = 11/40 + 11/5 = 11/40 + 88/40 = 99/40 = 2 19/40
7 2/15 + 3/5 = 107/15 + 3/5 = 107/15 + 9/15 = 126/15 = 42/5 = 8 2/5=8,4
10 1/12+4 1/4 + 1 1/3 = 121/12 + 17/4 + 4/3 = 121/12+51/12+16/12 = (121+51+16)/12= 188/12 = 47/3= 15 2/3
33 1/30 + 11 1/10 + 55 1/15 + 1 1/3 = 100/30 + 111/10 + 826/15 + 4/3 = 100/30+333/30+1652/30+40/30=(100+333+1652+40)/30=2125/30 = 425/6= 70 5/6
90 1/6 + 11 1/7 = (90+11) + (1/6+1/7) = 101+ 7/42+6/42=101 13/42
51 1/15 + 2 3/4 = (51+2) + (1/15 + 3/4)= 53+ (4/60+45/60)=53+49/60 =
= 53 49/60
32 1/4 + 26 2/25 = (32+26) + (1/4 + 2/25) = 58 + (25/100+8/100) = 58+33/100=58 33/100 = 58,33
77 1/8 + 88 1/6 = (77+88) + (1/8+1/6) = 165 + (3/24 + 4/24) = 165+7/24=
= 165 7/24
212 2/12 + 218 5/18 = (212 +218) + (1/6 + 5/18) = 430 + (3/18+10/36) = 430 + 13/18 = 430 13/18