Question

solve these 3/4+(-2/5)

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Answer 1

Answer:

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Step-by-step explanation:

$\frac{3}{4} + ( \frac{ - 2}{5} )\\ \\ \frac{3}{4} - \frac{2}{5} \\ \\ taking \: \: lcm \\ \\ \frac{3 \times 5}{4 \times 5} - \frac{2 \times 4}{5 \times 4} \\ \\ \frac{15}{20} - \frac{8}{20} \\ \\ \frac{15 - 8}{20} \\ \\ \frac{7}{20}$

Answer 2

Answer:

7/20

Step-by-step explanation:

3/4+(-2/5)

=3/4 - 2/5

LCM of 4 and 5 is 20

=(3 x 5/4 x 5)-(2 x 4/5 x 4)

= 15/20-8/20

=7/20