Math question, class 8
Answers
Fraction \frac{-3}{7}\approx -0.428571429 can be rewritten as -\frac{3}{7}\approx -0.428571429 by extracting the negative sign.
Multiply \frac{2}{5}=0.4 times -\frac{3}{7}\approx -0.428571429 by multiplying numerator times numerator and denominator times denominator.
Do the multiplications in the fraction \frac{2\left(-3\right)}{5\times 7}\approx -0.171428571.
Fraction \frac{-6}{35}\approx -0.171428571 can be rewritten as -\frac{6}{35}\approx -0.171428571 by extracting the negative sign.
Multiply \frac{1}{6}\approx 0.166666667 times \frac{3}{2}=1.5 by multiplying numerator times numerator and denominator times denominator.
Do the multiplications in the fraction \frac{1\times 3}{6\times 2}=0.25.
Reduce the fraction \frac{3}{12}=0.25 to lowest terms by extracting and canceling out 3.
Least common multiple of 35 and 4 is 140. Convert -\frac{6}{35}\approx -0.171428571 and \frac{1}{4}=0.25 to fractions with denominator 140.
Since -\frac{24}{140}\approx -0.171428571 and \frac{35}{140}=0.25 have the same denominator, subtract them by subtracting their numerators.
Subtract 35 from -24 to get -59.
Multiply \frac{1}{14}\approx 0.071428571 times \frac{2}{5}=0.4 by multiplying numerator times numerator and denominator times denominator.
Do the multiplications in the fraction \frac{1\times 2}{14\times 5}\approx 0.028571429.
Since -\frac{59}{140}\approx -0.421428571 and \frac{4}{140}\approx 0.028571429 have the same denominator, subtract them by subtracting their numerators.
Subtract 4 from -59 to get -63.
Reduce the fraction \frac{-63}{140}\approx -0.45 to lowest terms by extracting and canceling out 7.
-\frac{9}{20}=-0.45