Question

ajutatima va rog frumos
$\frac{7}{16} \div \frac{9}{16} \\ \\ - \frac{11}{28} \div \frac{33}{56} \\ \\ 3 \times \frac{3}{4} \div ( - 2 \frac{11}{12} ) \\ \\ ( - 24) \div ( - 5 \frac{7}{13)}$
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Answer 1

7/16:9/16=7/16•16/9=7/9
-11/28:33/56=-11/28•56/33=1/3
-24/-5 7/13=-24:-72/13=-24•-13/72=13/3