33/7×2 2/13+2 1/2×2 2/13
1) 3 3/7×2 2/13= 24/7×28/13= (сокращаем) 24/1×4/13= 96/13= 7 5/13
2) 2 1/2×2 2/13= (сокращаем) 5/14×1/13= 70/13=5 5/13
3) 7 5/13+5 5/13= 12 10/13
Ответ:
12 10/13
Пошаговое объяснение:
3 3/7×2 2/13+2 1/2×2 2/13=
=2 2/13×(3 3/7+2 1/2)=12 10/13
1)3 3/7+2 1/2=24/7+5/2=(48+35)/14=
=83/14=5 13/14
2)5 13/14×2 2/13=83/14×28/13=166/13=
=12 10/13
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Answers & Comments
33/7×2 2/13+2 1/2×2 2/13
1) 3 3/7×2 2/13= 24/7×28/13= (сокращаем) 24/1×4/13= 96/13= 7 5/13
2) 2 1/2×2 2/13= (сокращаем) 5/14×1/13= 70/13=5 5/13
3) 7 5/13+5 5/13= 12 10/13
Ответ:
12 10/13
Пошаговое объяснение:
3 3/7×2 2/13+2 1/2×2 2/13=
=2 2/13×(3 3/7+2 1/2)=12 10/13
1)3 3/7+2 1/2=24/7+5/2=(48+35)/14=
=83/14=5 13/14
2)5 13/14×2 2/13=83/14×28/13=166/13=
=12 10/13