Evaluate: $\frac{4}{5}$ $+$ $\frac{9}{7}$

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Solution

Step 1. We have to take the L.C.M of denominators of both fractions.
Step 2. After taking the L.C.M of $5$ and $7$ , following the calculation.
$=$ $\frac{(7 \times 4) + (9 \times 5)}{35}$
$=$ $\frac{28 + 45}{35}$
$=$ $\frac{73}{35}$
Hence, the required answer is $\frac{73}{35}$ .

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