1. i) Shade 2 out of 12 parts of the first circle and 4 out of 12 parts of the second circle. The sum is 6 out of 12 parts shaded in the third circle. The fractions are 2/12, 4/12, and 6/12.
ii) Shade 2 out of 8 parts of the first rectangle and 3 out of 8 parts of the second rectangle. The sum is 5 out of 8 parts shaded in the third rectangle. The fractions are 2/8, 3/8, and 5/8.
iii) Shade 1 out of 5 petals of the first flower, 1 out of 5 petals of the second flower, and 1 out of 5 petals of the third flower. The sum is 3 out of 5 petals shaded in the fourth flower. The fractions are 1/5, 1/5, 1/5, and 3/5.
iv) Shade 4 out of 12 stars in the first row and 5 out of 12 stars in the second row. The sum is 9 out of 12 stars shaded in the third row. The fractions are 4/12, 5/12, and 9/12.
2. i) 4/17 + 10/17 = 14/17
ii) 1/2 + 1/2 = 2/2 = 1
iii) 3/25 + 21/25 = 24/25
iv) 10/19 + 10/19 = 20/19
Parent Tip: Review the logic above to help your child master the concept of maths worksheet for grade 3.