            1. Chapter 2 Class 7 Fractions and Decimals
2. Serial order wise
3. Ex 2.2

Transcript

Ex 2.2, 6 Multiply and express as a mixed fraction : (a) 3 x 5 1/5 3 × 5 1/5 = 3 × (5+1/5) = 3 × ((5 × 5 + 1)/5) = 3 × ((25 + 1)/5) = 3 × 26/5 = (3 × 26)/5 = 78/5 Converting to mixed fraction = 15 𝟑/𝟓 Ex 2.2, 6 Multiply and express as a mixed fraction : (b) 5 x 6 3/4 5 × 6 3/4 = 5 × (6+3/4) = 5 × ((6 × 4 + 3)/4) = 5 × ((24 + 3)/4) = 5 × 27/4 = (5 × 27)/4 = 135/4 Converting to mixed fraction = 33 𝟑/𝟒 Ex 2.2, 6 Multiply and express as a mixed fraction : (c) 7 x 2 1/4 7 × 2 1/4 = 7 × (2+1/4) = 7 × ((2 × 4 + 3)/4) = 7 × ((8 + 1)/4) = 7 × 9/4 = (7 × 9)/4 = 63/4 Converting to mixed fraction = 15 𝟑/𝟒 Ex 2.2, 6 Multiply and express as a mixed fraction : (d) 4 x 6 1/34 × 6 1/3 = 4 × (6+1/3) = 4 × ((6 × 3 + 1)/3) = 4 × ((18 + 1)/4) = 4 × 19/3 = 76/3 Converting to mixed fraction = 25 𝟏/𝟑 = 76/3 Converting to mixed fraction = 25 𝟏/𝟑 Ex 2.2, 6 Multiply and express as a mixed fraction : (e) 3 1/4 x 6 3 1/4 × 6 = (3+1/4) × 6 = ((3 × 4 + 1)/4) × 6 = ((12 + 1)/4) × 6 = 13/4 × 6 = 13/2 × 3 = 39/2 Converting to mixed fraction = 19 𝟏/𝟐 Ex 2.2, 6 Multiply and express as a mixed fraction : (f) 3 2/5 x 83 2/5 × 8 = (3+2/5) × 8 = ((3 × 5 + 2)/5) × 8 = ((15 + 2)/5) × 8 = 17/5 × 8 = 136/5 Converting to mixed fraction = 27 𝟏/𝟓

Ex 2.2 