2 4/5 : 7/5 + 2 3/5 .... Question from @harryratrii

September 2022 2 4 Report

2 4/5 : 7/5 + 2 3/5

πumez

2 4/5 : 7/5 + 2 3/5

= (2×5+4) × 5/5×7 + 2×5+3/5

= 4+2×5/7 + 2×5+3/5

= 14/7 + 13/5

= 2 + 13/5

= 10/5 + 13/5

= 23/5

= 4.6

1 votes Thanks 1

Zan643

$2 \frac{4}{5} \div \frac{7}{5} + 2 \frac{3}{5}$

$( \frac{5 \times 2 + 4}{5} \div \frac{7}{5}) + \frac{5 \times 2 + 3}{5}$

$( \frac{14}{5} \div \frac{7}{5} ) + \frac{13}{5}$

$( \frac{14}{5} \times \frac{5}{7}) + \frac{13}{5}$

$( \frac{14 \times 5}{5 \times 7} ) + \frac{13}{5}$

$\frac{70}{35} + \frac{13}{5}$

$\frac{2}{1} + \frac{13}{5}$

$\frac{2 \times 5}{1 \times 5} + \frac{13}{5}$

$\frac{10}{5} + \frac{13}{5}$

$\frac{10 + 13}{5}$

$\frac{23}{5} \to\bf\blue{4 \frac{3}{5} }$

$\tiny\blue{☆}$

3 votes Thanks 2

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