Question

Sahil wants to put a picture in a frame. the picture is 7 whole 3 by 5cm wide. To fill in the frame the picture cannot be more than 7 whole 3 by 10 cm wide How much should be the picture be trimmed ?​

Answer 1

The width of the picture = 7\ \frac{3}{5}=\ \frac{38}{5}cm

The required width of the frame

= 7\ \frac{3}{10}=\ \frac{73}{10}

The width of the picture to be trimmed of

= \frac{38}{5}-\ \frac{73}{10}=\ \left(\frac{38}{5}-\ \frac{73}{10}\right)\

= =\ \left(\frac{2\times38-73\times1}{10}\ \right)=\ \frac{76-73}{10}

= \ \frac{3}{10}\ cm

Hence, the required width to be trimmed is \frac{3}{10}\ cm