15/7 \div 3/7

解答

\frac{15}{7} \div \frac{3}{7}

5

求解步骤

\frac{15}{7} \div \frac{3}{7}

使用分式法则:

\frac{a}{b} \div \frac{c}{d} = \frac{a}{b} \times \frac{d}{c}

= \frac{15}{7} \times \frac{7}{3}

分式相乘:

\frac{a}{b} \times \frac{c}{d} = \frac{a \times c}{b \times d}

= \frac{15 \times 7}{7 \times 3}

约分:

7

= \frac{15}{3}

数字相除:

\frac{15}{3} = 5

= 5

f a c t or + c^{2} - 9 c d + 18 d^{2}

s im pl i f y \frac{10}{11} - \frac{4}{7} + \frac{3}{5}

s im pl i f y \frac{5}{4} \times (- 4)

s im pl i f y 112 x^{4} - 5 x 112 x^{2}

s im pl i f y 2 e^{0.4 (3)}