1.

Evaluate of 4whole2by5+3whole7by8​

Answer»

4 \frac{2}{5} + 3 \frac{7}{8}

= \frac{22}{5} + \frac{31}{8}

= \frac{(22 \times 8) + (31 \times 5)}{40}

= \frac{176 + 155}{40}

= \frac{331}{40} = 8 \frac{11}{40}

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