Question 1 ii Find the sum-5-3-3-5

Name: NCERT - Grade 07 - Mathematics - Rational Numbers - Q11_2
Uploaded: 2022-07-04T10:36:42+05:30
Description: 5/3 + 3/5=5 × 5/3 × 5+3×3/5 ×3=25/15+9/15 [L.C.M of 3 and 5 is 15] =25+9/15=34/15=2 4/15 ...

5/3 + 3/5=5 × 5/3 × 5+3×3/5 ×3=25/15+9/15 [L.C.M of 3 and 5 is 15] =25+9/15=34/15=2 4/15 ...

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Standard VI

Mathematics

Estimating Sum or Difference

Question 1 ii...

Question

Question 1 (ii)

Find the sum:
$\frac{5}{3} + \frac{3}{5}$

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Solution

$\frac{5}{3} + \frac{3}{5} = \frac{5 \times 5}{3 \times 5} + \frac{3 \times 3}{5 \times 3} = \frac{25}{15} + \frac{9}{15}$ [L.C.M of 3 and 5 is 15]
$= \frac{25 + 9}{15} = \frac{34}{15} = 2 \frac{4}{15}$

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Estimating Sum or Difference

Standard VI Mathematics

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Question 1 (ii) Find the sum: 53+35

53+35=5×53×5+3×35×3=2515+915 [L.C.M of 3 and 5 is 15] =25+915=3415=2415

Question 1 (ii)

Find the sum:
$\frac{5}{3} + \frac{3}{5}$

$\frac{5}{3} + \frac{3}{5} = \frac{5 \times 5}{3 \times 5} + \frac{3 \times 3}{5 \times 3} = \frac{25}{15} + \frac{9}{15}$ [L.C.M of 3 and 5 is 15]
$= \frac{25 + 9}{15} = \frac{34}{15} = 2 \frac{4}{15}$