Question

VA ROG MULT DAU CORONA!!!
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Answer 1

Explicație pas cu pas:

$\frac{ 7 }{10} + \frac{5}{12} = \frac{12}{22}$

$\frac{19}{18} - \frac{5}{12} = \frac{14}{16}$

$3 \times \frac{5}{9 } + 7 \times \frac{1}{6} = \frac{15}{27} + \frac{7}{42} = \frac{22}{69}$

$4 \times \frac{1}{3} \ \times \frac{3}{10} = \frac{ {4}^{2} }{12} \times \frac{3}{10} = \frac{2}{6} \times \frac{3}{10} = \frac{6}{60}$