Question

2 6/37 × 1 7/12 + 2 6/37 × 3 1/24=
Обчислити найзручнішим способом
21 5/42× 1 6/43- 1 6/43× 8 5/6=
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Answer 1

Пошаговое объяснение:

2 6/37×1 7/12+2 6/37×3 1/24=

=2 6/37(1 7/12+3 1/24)=

=2 6/37(1 14/24+3 1/24)=

=2 6/37×4 15/24=80/37×111/24=10

21 5/42×1 6/43-1 6/43×8 5/6=

=1 6/43(21 5/42-8 5/6)=

=1 6/43×(21 5/42-8 35/42)=

=1 6/43×(20 47/42-8 35/42)=

=1 6/43×12 12/42=49/43×12 2/7=

=49/43×86/7=14