Q: Express ratio in lowest term 7 21?

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250 percent as an improper fraction in lowest terms is 5/2. The mixed number form of 250% is 21/2 or 2.5 in decimal form.

7:21

It is 525/100 = 21/4.

Two specific cases of pairs of numbers whose product is 21 are: 1 x 21 and 3 x 7. The ratio of their sum to their difference is: 1 x 21 ... (21+1):(21 - 1) = 22:20 = 11 : 10, and 3 x 7 ... (3+7):(7-3) = 10:4 = 5 : 2. To find a general formula, let the larger number be x and the smaller be 21/x. Their sum is x + 21/x = (x^2 +21)/x Their difference is x - 21/x = (x^2 -21)/x Ratio of sum to difference is [(x^2+21)/x] / [(x^2-21)/x] = [(x^2+21)/x] * [x/(x^2-21)] = (x^2+21)/(x^2-21) Check: This formula produces the results found above.

Students learn to find equal ratios by first writing the given ratio as a fraction, then multiplying the numerator and denominator of the fraction by the same number. For example, to find two ratios that are equal to 1:7, first write 1:7 as the fraction 1/7. Next, multiply both the numerator and denominator of 1/7 by 2, to get 2/14, or 2:14, and multiply the numerator and denominator of 1/7 by 3, to get 3/21, or 3:21. So 2:14 and 3:21 are two ratios that are equal to 1:7. Students are also asked to determine whether two given ratios are equal, by first writing each ratio as a fraction, then writing each fraction in lowest terms. If the two fractions are the same when written in lowest terms, then the ratios are equal.

Related questions

Write in lowest terms

21/2 or as a mixed number 10 1/2

21:17 in its lowest terms.

21/36 in lowest term is 7/12. Multiply both, the numerator and the denominator, by the same number in order to obtain equivalent fractions.

The lowest term of 172 over 84 is 43/21 (in fraction form) or 21/21 (as a mixed number).

If you mean 15/21 then lowest terms is 5/7

21 over 49 in lowest terms is 3/7

5/21 is in its simplest form.

3/5

12/63 = 4/21

ANSWER: 21 days : 30 days = 7:10

7/21 in lowest term =1/3To reduce to lowest term:1. Get the GCF of 7 & 217 = 721=7 * 3======GCF=72. Divide the 7 & 21 by their GCF.7÷ 7 = 121÷ 7 = 3thus; lowest term is1/3.