How is the process of multiplying fractions different from the process of adding fractions

Mathematics

2 answers:

Ganezh [65]3 years ago

6 0

In adding fractions i believe you add across and multiplying fractions you have to multiply numerator by denominator!

If that answers your question make sure to mark as brainliest!
-procklown

deff fn [24]3 years ago

3 0

It's very important to understand the basic difference between adding 2 fractions together and multiplying 2 fractions together.

Take a look at the 2 problems I have written on on the board.

When adding 2 fractions together, we add across the numerators but keep the denominator the same.

So 4/5 + 3/7 is 7/5.

When multiplying 2 fractions together, we multiply across the numerator and we also multiply across the denominators.

So 4/5 · 3/5 is 12/25.

You might be interested in

Consider an urn containing 8 white balls, 7 red balls and 5 black balls.

weqwewe [10]

Answer + Step-by-step explanation:

1) The probability of getting 2 white balls is equal to:

$=\frac{8}{20} \times \frac{7}{19}\\\\= 0.147368421053$

2) the probability of getting 2 white balls is equal to:

$=C^{2}_{5}\times (\frac{8}{20} \times \frac{7}{19}) \times (\frac{12}{18} \times \frac{11}{17} \times \frac{10}{16})\\=0.397316821465$

3) The probability of getting at least 72 white balls is:

$=C^{72}_{150}\times \left( \frac{8}{20} \right)^{72} \times \left( \frac{7}{20} \right)^{78} +C^{73}_{150}\times \left( \frac{8}{20} \right)^{73} \times \left( \frac{7}{20} \right)^{77} + \cdots +C^{149}_{150}\times \left( \frac{8}{20} \right)^{149} \times \left( \frac{7}{20} \right)^{1} +\left( \frac{8}{20} \right)^{150}$