How do you evaluate $\frac{10}{12} - \frac{4}{7}$ $\frac { 10} { 12} - \frac { 4} { 7}$ ?

Question

How do you evaluate $\frac{10}{12} - \frac{4}{7}$ $\frac { 10} { 12} - \frac { 4} { 7}$ ?

2 Answers

Impact of this question

1226 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-06-28T05:27:36

$\frac{11}{42}$ $11/42$

Explanation:

Usually you would first find the common denominator, (in this case the LCM =84) for this problem I would start by simplifying $\frac{10}{12} = \frac{5}{6}$ $10/12=5/6$ Now the LCM is is 42 and will save simplifying later.

Next multiply each fraction by a fraction (that =1) to make the denominator=42

$\frac{5}{6} \cdot \frac{7}{7} = \frac{35}{42}$ $5/6*7/7=35/42$

$\frac{4}{7} \cdot \frac{6}{6} = \frac{24}{42}$ $4/7*6/6=24/42$

Subtracting these the answer is $\frac{11}{42}$ $11/42$

Answer 2 · 2017-06-28T05:31:52

$\frac{11}{42}$ $11/42$

Explanation:

Method: Change both fractions to the common denominator.

This can be done by multiplying 12 by 7

$(\frac{10}{12}) \cdot (\frac{7}{7}) - (\frac{4}{7}) \cdot (\frac{12}{12})$ $(10/12)* (7/7) - (4/7)*(12/12)$ Multiplying by $\frac{7}{7}, \frac{12}{12}$ $7/7, 12/12$ does not change the fractions as it is the same as multiplying by $1$ $1$

$= (\frac{70}{84}) - (\frac{48}{84})$ $=(70/84)-(48/84)$

$= \frac{22}{84}$ $=22/84$

$= \frac{11}{42}$ $=11/42$

Science

Math

Humanities

... and beyond

How do you evaluate $\frac{10}{12} - \frac{4}{7}$ $\frac { 10} { 12} - \frac { 4} { 7}$ ?

2 Answers

Explanation:

Explanation:

Related questions

Impact of this question

Science

Math

Humanities

... and beyond

How do you evaluate 1012−47\frac { 10} { 12} - \frac { 4} { 7} ?

2 Answers

Explanation:

Explanation:

Related questions

Impact of this question

How do you evaluate $\frac{10}{12} - \frac{4}{7}$ $\frac { 10} { 12} - \frac { 4} { 7}$ ?