Question

Примеры:а)-3.4 - 0,2;б)-2 7/8 -(-1/6);в)8 2/3 - (-4 3/8) + (-6 1/36)желательно быстрей

Answer 1

$1)-3.4-0.2=-3.6 \\ 2)-2 \frac{7}{8} -(- \frac{1}{6} )=- 2\frac{7}{8} + \frac{1}{6} =-2 \frac{21}{24} + \frac{4}{24} =-2 \frac{25}{24} =-1 \frac{1}{24} \\ \\ 3)8 \frac{2}{3} -(-4 \frac{3}{8} )-6 \frac{1}{36} =8 \frac{2}{3} +4 \frac{3}{8} -6 \frac{1}{36} =8 \frac{48}{72} +4 \frac{27}{72} -6 \frac{2}{72} = \\ \\ =6 \frac{73}{72} =7 \frac{1}{72}$

Answer 2

Solving Mathematical Expressions

a) To solve the expression -3.4 + 0.2, we simply add the two numbers together: - Result: -3.4 + 0.2 = -3.2 b) For the expression -2 + 7/8 - (-1/6), we first simplify the subtraction of a negative number by changing it to addition: - Result: -2 + 7/8 + 1/6 = -2 + 7/8 + 1/6 = -2 + 21/24 + 4/24 = -2 + 25/24 = -2 + 1 1/24 = -1 1/24 c) Lastly, for the expression 8 + 2/3 - (-4 + 3/8) + (-6 + 1/36), we simplify the addition and subtraction in the following steps: - Result: 8 + 2/3 + 4 - 3/8 - 6 + 1/36 = 8 + 2/3 + 4 - 3/8 - 6 + 1/36 = 8 + 2/3 + 4 - 3/8 - 6 + 1/36 = 8 + 8/3 - 3/8 - 6 + 1/36 = 8 + 8/3 - 3/8 - 6 + 1/36 = 8 + 8/3 - 3/8 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24 - 6 + 1/36 = 8 + 8/3 - 9/24