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valera250182 @valera250182

July 2022 1 7 Report

найдите значение выражения: 1 1/2×1 1/3×1 1/4×1 1/5×1 1/6-1/2;

Answers & Comments

alisher1221 1 1/2×1 1/3×1 1/4×1 1/5×1 1/6-1/2
1) 1 1/2×1 1/3= 3/2×4/3=3×4/2×3=12/6= 2
2) 2×1 1/4= 2× 5/4=10/4= 5/2 = 2 1/2
3) 2 1/2 × 1 1/5= 5/2×6/5= 30/10 = 3
4) 3 × 1 1/6= 3 × 7/6= 21/6= 7/2 = 3 1/2
5) 3 1/2-1/2= 7/2-1/2= 6/2 = 3

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