Evaluate the following- 2-2 - 14-7 - 4-5 - 28-35-

The correct option is A 1.5 2.2+1 47 4.5+28/35 = 2.2+11/7 4.5+78/35 = 2.2 4.5+11/7+78/35 = 2.3+55+78/35 = 2.3+133/35 = 2. ...

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Standard VII

Mathematics

Addition of Rational Numbers

Evaluate the ...

Question

Evaluate the following:
$2.2 + 1 \frac{4}{7} - 4.5 + 2 \frac{8}{35}$ .

1.5

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Solution

The correct option is A $1.5$
$2.2 + 1 \frac{4}{7} - 4.5 + 2 \frac{8}{35}$
$= 2.2 + \frac{11}{7} - 4.5 + \frac{78}{35}$
$= 2.2 - 4.5 + \frac{11}{7} + \frac{78}{35}$
$= - 2.3 + \frac{55 + 78}{35}$
$= - 2.3 + \frac{133}{35}$
$= - 2.3 + 3.8 = 1.5$

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Evaluate the following:2.2+147−4.5+2835.

The correct option is A 1.52.2+147−4.5+2835=2.2+117−4.5+7835=2.2−4.5+117+7835=−2.3+55+7835=−2.3+13335=−2.3+3.8=1.5

Evaluate the following:
$2.2 + 1 \frac{4}{7} - 4.5 + 2 \frac{8}{35}$ .

The correct option is A $1.5$
$2.2 + 1 \frac{4}{7} - 4.5 + 2 \frac{8}{35}$
$= 2.2 + \frac{11}{7} - 4.5 + \frac{78}{35}$
$= 2.2 - 4.5 + \frac{11}{7} + \frac{78}{35}$
$= - 2.3 + \frac{55 + 78}{35}$
$= - 2.3 + \frac{133}{35}$
$= - 2.3 + 3.8 = 1.5$