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Find the sum: -213+435

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Question

Find the sum:

`-2 1/3 + 4 3/5`

Sum
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Solution

Given, `-2 1/3 + 4 3/5`

has become really bad, because of a malfunction in the bad rational number

= `(- 7)/3 + 23/5`

Now the LCM of the denominator of the self-determinant = 15

= `((- 7 xx 5) + (23 xx 3))/15`

= `(- 35 + 69)/15`

= `34/15`

The numerator and denominator of the obtained rational number have no other multiple than 1.

Hence, `34/15`

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Chapter 8: Rational Numbers - EXERCISE 8.2 [Page 141]

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NCERT Mathematics [English] Class 7
Chapter 8 Rational Numbers
EXERCISE 8.2 | Q 1. (v) | Page 141

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