Mathematics: Subtract. write answer as mixed number in simplest form. [tex]5 rac{1}{4} - 2 rac{7}{10} [/tex]

Subtract. write answer as mixed number in simplest

Ответ:

hehefjf8610

10.03.2022

Mathematics

2 $\frac{11}{20}$

Step-by-step explanation:

one way is to change the mixed numbers to improper fractions

5 $\frac{1}{4}$ = $\frac{21}{4}$ and 2 $\frac{7}{10}$ = $\frac{27}{10}$

now we have

$\frac{21}{4}$ - $\frac{27}{10}$

We require the fractions to have a common denominator before we can subtract them.

the lowest common multiple of 4 and 10 is 20

multiply the numerator/denominator of the first fraction by 5 and the numerator/denominator of the second fraction by 2

= $\frac{21(5)}{4(5)}$ - $\frac{27(2)}{10(2)}$

= $\frac{105}{20}$ - $\frac{54}{20}$

now subtract the numerators leaving the denominator

= $\frac{51}{20}$ = 2 $\frac{11}{20}$ ← in simplest form

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Ответ:

inesdelude

10.03.2022

Mathematics

$\frac{102}{40} = \frac{51}{20}$

Step-by-step explanation:

$5\frac{1}{4} - 2\frac{7}{10} =$

simplify

$\frac{21}{4} - \frac{27}{10} =$

common denominator

$\frac{210}{40} - \frac{108}{40} = \frac{102}{40}$

simplify

$\frac{102}{40} = \frac{51}{20}$

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Ответ:

hi105

25.04.2022

Mathematics

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Hee, hee, I'm bad as Michael Jackson

Step-by-step explanation:

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Subtract. write answer as mixed number in simplest form. $5 \frac{1}{4} - 2 \frac{7}{10}$

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