How do you evaluate $\frac { 3} { 5}- \frac { 1} { 4}$ ?

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Answer 1 · 2017-04-04T19:30:26

$7/20$

For the addition and subtraction of fractions, there must be a common denominator

the common denominator for these fractions is 20

Multiply the fractions (numerator and denominator) to achive a common denominator

So,

= $(3*4)/(5*4)-(1*5)/(4*5)$

= $12/20 - 5/20$

Subtract the numerators,

= $7/20$

How do you evaluate \frac { 3} { 5}- \frac { 1} { 4}\frac { 3} { 5}- \frac { 1} { 4}?