Question

12.8 x 3/4 I don’t know it

Answer 1

Your question :

• $\sf{12.8 \: \times \: \dfrac{3}{4} }$

Aim :

• We have to multiply them.

Solution :

$: \: \implies \: \sf{12.8 \: \times \: \dfrac{3}{4} } \\ \\ : \: \implies \: \sf{ \dfrac{128}{10} \: \times \: \dfrac{3}{4} } \\ \\ : \: \implies \: \sf{ \dfrac{384}{10 \times 4} } \\ \\ : \: \implies \: \sf{ \dfrac{384}{40} } \\ \\ : \: \implies \: \sf{ \cancel\dfrac{384}{40} } \\ \\ : \: \implies \: \sf{ \dfrac{192}{20} } \\ \\ : \: \implies \: \sf{ \cancel\dfrac{192}{20} } \\ \\ : \: \implies \: \sf{ \dfrac{96}{10} } \\ \\ : \: \implies \: \red{\bf{9.6}}$

Answer 2

48/5 or 9 3/5

12.8/1 x 3/4 = 38.4/4

Or multiply 12.8/1 by 10 ==> 128/10

128/10 x 3/4 = 384/40

Hope this helps!