Question

evaluate 1. [2/-3 x 5/4] + [5/9 x3/10] 2.[2 x 1/4] - [-18/7 x -7/15]​

Answer 1

Answer:

Here your Answer .

Step-by-step explanation:

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$1. [\frac{2}{-3}×\frac{5}{4}]+[\frac{5}{9}×\frac{3}{10}]\\=[-\frac{10}{12}]+[\frac{15}{90}]\\=-\frac{5}{6}+\frac{1}{6} \\=\frac{-5+1}{6}\\=\frac{4}{6}=\frac{2}{3}$

$2. [2×\frac{1}{4}]-[\frac{18}{7}×\frac{-7}{15}]\\=[\frac{1}{2}]-[\frac{-126}{105} ]\\=\frac{1}{2}+\frac{18}{15}\\=\frac{1}{2} +\frac{6}{5}\\=\frac{5+12}{10} =\frac{11}{10}=1.1$

Answer 2

Answer:

806

2+6+9+9+90+32+52

900