Question

Efectuati: d)
dau coroana ​

Answer 1

[tex]1 \frac{2}{15} - \frac{1}{4} \div( 2 \frac{1}{3} + \frac{1}{2} \times 1 \frac{1}{3} ) \\ = \frac{17}{15} - \frac{1}{4} \div ( \frac{7}{3} + \frac{1}{2} \times \frac{4}{3} ) \\ = \frac{17}{15} - \frac{1}{4} \div ( \frac{7}{3} + \frac{4}{6} ) \\ = \frac{17}{15} - \frac{1}{4} \div ( \frac{7}{3} + \frac{2}{3} ) \\ = \frac{17}{15} - \frac{1}{4} \div \frac{9}{3} \\ = \frac{17}{15} - \frac{1}{4} \times \frac{3}{9} \\ = \frac{17}{15} - \frac{3}{36} \\ = \frac{204}{180} - \frac{15}{180} \\ = \frac{189}{180} \\ = \frac{63}{60} \\ = \frac{21}{20}

daca ai nelamuriri scrie-mi in comentarii

Answer 2

Răspuns:

21/21

Explicație pas cu pas:

1 2/15-1/4÷(2 1/3+1/2×1 1/3)

17/15-1/4÷(7/3+1/2×4/3)

17/15-1/4÷(7/3+2/3)

17/15-1/4÷9/3

17/15-1/4×3/9

17/15-1/4×1/3

17/15-1/12

68-5/60

63/60

21/20

Sper ca te am ajutat si ca ai inteles cum ti am explicat