Last updated at March 18, 2019 by Teachoo
Let’s do this by examples.
2/3 × 4
= (2 × 4)/3
= 8/3
9 / 8 × 2
= (9 × 2)/8
= 9/4
2/3 × 5/4
= (2 × 5)/(3 × 5)
= 10/12
4 × 3 2 / 7
= 4 × (3+2/7)
= 4 × ((3 × 7 + 2)/7)
= 4 × ((21 + 2)/7)
= 4 × 23/7
= (23 × 4)/7
= 92/7
7/2 × 4 3/5
= 7/2 × (4+3/5)
= 7/2 × ((4 × 5 + 3)/5)
= 7/2 × ((20 + 3)/5)
= 7/2 × 23/5
= (7 × 23)/(2 × 5)
= 161/10
Transcript
Multiplication of Fractions Letβs do this by examples. π/π Γ 4 = (2 Γ 4)/3 = 8/3 π/π Γ 2 = (9 Γ 2)/8 = 9/4 π/π Γ π/π = (2 Γ 5)/(3 Γ 5) = 10/12 4 Γ 3 π/π = 4 Γ (3+2/7) = 4 Γ ((3 Γ 7 + 2)/7) = 4 Γ ((21 + 2)/7) = 4 Γ 23/7 = (23 Γ 4)/7 π/π Γ 4 π/π = 7/2 Γ (4+3/5) = 7/2 Γ ((4 Γ 5 + 3)/5) = 7/2 Γ ((20 + 3)/5) = 7/2 Γ 23/5 = (7 Γ 23)/(2 Γ 5) = 161/10
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