Вычислите:
а)3цел.1/2+1цел.5/6
б)9цел.1/2+2цел.1/4
в)7-5цел.1/4
г)2/5×3/4
д)3/8÷1/2
е)5цел.1/4÷14
а)3цел.1/2+1цел.5/6
б)9цел.1/2+2цел.1/4
в)7-5цел.1/4
г)2/5×3/4
д)3/8÷1/2
е)5цел.1/4÷14
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Answers & Comments
а) 3 1/2 + 1 5/6 = 3 3/6 + 1 5/6 = 5 1/3
б) 9 1/2 + 2 1/4 = 9 2/4 + 2 1/4 = 11 3/4
в) 7 - 5 1/4 = 6 4/4 - 5 1/4 = 1 3/4
г) 2/5×3/4 = 3/10
д)3/8÷1/2 = 3/8 * 2 = 3/4
е) 5 1/4 : 14 = 21/4 * 1/14 = 3/8