Question

ayúdenme por favor yaaa es matematicas

Answer 1

PROBLEMA 1

$4 \times \frac{9}{36} = \frac{4 \times 9}{36} = \frac{36}{36} = 1$

PROBLEMA 2

$\frac{ - 7}{8} \times \frac{ - 4}{8} = \frac{ - 7 \times - 4}{8 \times 8} = \frac{28}{64} = 0.4375$

PROBLEMA 3

$3 \frac{1}{4} \times 2 \frac{2}{3} = \frac{3 \times 4 + 1}{4} \times \frac{3 \times 2 + 2}{3} = \frac{13}{4} \times \frac{8}{3} = \frac{13 \times 8}{4 \times 3} = \frac{104}{12}$

PROBLEMA 4

$\frac{9}{3} \times \frac{ - 4}{8} = \frac{9 \times - 4}{3 \times 8} = \frac{ - 36}{24} = \frac{ - 3}{2} = - 1.5$

PROBLEMA 5

$\frac{16}{8} \times \frac{1}{4} = \frac{16 \times 1}{8 \times4 } = \frac{16}{32} = \frac{1}{2} = 0.5$