3 years ago

How can equivalent fractions help when adding mixed numbers?

1 answer:

8 0

1.find the least common denominator
2.find the equivalent fractions
3.add or subtract the fractions and add or subtract the whole numbers
4.write your answer in lowest terms

This might help but i tried

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7.8 is 65% of what number

Natalka [10]

7.8 = 0.65x

x = 100/65 * 78/10

x = 10/5 * 6

x = 12

3 0

3 years ago

Properties of exponents<br> Rewrite the expression in the form b^n—— (b^2)^3/7

exis [7]

Answer:

$b^{\frac{6}{7}}$ is the required expression.

Step-by-step explanation:

$(b^2)^{\frac{3}{7}}\\\\\mathrm{Apply\:exponent\:rule:\:}\left(a^b\right)^c=a^{bc},\:\quad \mathrm{\:assuming\:}a\ge 0\\\\=b^{2\cdot \frac{3}{7}}\\\\=b^{\frac{6}{7}}$