Question 2 (a) - Figure it out - Page 196 to 198 - Chapter 8 Class 7 - Working with Fractions (Ganita Prakash)

Transcript

Question 2 (a) For each of the questions below, choose the expression that describes the solution. Then simplify it. (a) Maria bought 8 m of lace to decorate the bags she made for school. She used 1/4 m for each bag and finished the lace. How many bags did she decorate? (i) 8 × 1/4 (ii) 1/8 × 1/4 (iii) 8 ÷ 1/4 (iv) 1/4 ÷ 8 Now, Number of bags she decorated = (𝑇𝑜𝑡𝑎𝑙 𝑙𝑎𝑐𝑒)/(𝐿𝑎𝑐𝑒 𝑛𝑒𝑒𝑑𝑒𝑑 𝑓𝑜𝑟 1 𝑏𝑎𝑔) = 𝟖÷𝟏/𝟒 = 8 ×4/1 = 32 bags Thus, total bags are 32 bags Since expression is 𝟖÷𝟏/𝟒, option (iii) is correct